<span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 62.33px; height: 21.07px;"><img alt="" src="https://img-question-vn.ruangguru.com/UW9cS5-uHmKgOkNNzGThz8SR2ObC8SC57plI6gNL1XhoERN3fdQ631RXEzVMvXoGm7QV-3Jttuv3ESoFzegfQLrRqgsggpkrzNnswvlPZHpf3tz-fwZqfTQgQkLXVKLkNsL9qo45" style="width: 62.33px; height: 21.07px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>.

Phương trình nào là phương trình bậc nhất một ẩn?

Có 1 nghiệm giống nhau.

Có nhiều nghiệm giống nhau.

Có tập nghiệm giống nhau.

Có tập nghiệm khác nhau.

Hai phương trình tương đương là:

<span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 11.80px; height: 16.00px;"><img alt="" src="https://img-question-vn.ruangguru.com/30PYqaYNce-Li45RauK8V9ryhxq3thFSJkN5KGNgIGcZZVTJHVzHG6m56AMFo6bRFSml9h9WxskjivHbfvERtSi-aCzfU6XPv_N8z3y2ZwJ0_8ENXo_4FHDid-kdZpaRuSP1HBL_" style="width: 11.80px; height: 16.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/> là nghiệm của phương trình <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 68.20px; height: 22.73px;"><img alt="" src="https://img-question-vn.ruangguru.com/iyD1b0mSao3HG1mzZ7gSsUArI1XIiwYtCJrBEKMjqGpm5tQJ1ySCoTGU8FCsqI6fnJvH18JyK7QyN-Jccz0DQlx3Okv3DXZtB9MVXervVis1UrZIZE8oqj6iwoqAiwDhH3q3v9MS" style="width: 68.20px; height: 22.73px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>

<span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 22.73px; height: 21.07px;"><img alt="" src="https://img-question-vn.ruangguru.com/YlvibH1Z89HGcBU1TgCS7ZJEc5gfx3rxrs4o9yKwpuZkWcbahE0djW_IQ9AXlPHXrZd5JpDeNCs_A_FvVJZm6lB1QCry7jaHCiObmYxrezQZwe_62wWcKyKw-uYUQqioHVJWgoLr" style="width: 22.73px; height: 21.07px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/> là nghiệm của phương trình <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 68.20px; height: 22.73px;"><img alt="" src="https://img-question-vn.ruangguru.com/iyD1b0mSao3HG1mzZ7gSsUArI1XIiwYtCJrBEKMjqGpm5tQJ1ySCoTGU8FCsqI6fnJvH18JyK7QyN-Jccz0DQlx3Okv3DXZtB9MVXervVis1UrZIZE8oqj6iwoqAiwDhH3q3v9MS" style="width: 68.20px; height: 22.73px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>

Tập nghiệm của phương trình <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 139.80px; height: 27.80px;"><img alt="" src="https://img-question-vn.ruangguru.com/B9E5g7Nkl9NNhKHwMauHL4oC-wvCV9YhOlnVeC_JvFHfqCcq3G01MnneYyBZVxh3zRKqD2kIw8ZgEA1QWX0wAGQIlOEoa6kKCRtbPZfpjbrcMAN1zTlMhBc5K7rtxlVcN6jobezV" style="width: 139.80px; height: 27.80px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>là <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 17.33px; height: 9.33px;"><img alt='&lt;math xmlns="http://www.w3.org/1998/Math/MathML"&gt;&lt;mo&gt;&amp;#x2205;&lt;/mo&gt;&lt;/math&gt;' src="https://img-question-vn.ruangguru.com/Dt15-ME7MycmmOPQj5-elk7_qjcj3P4PU2F0BQFIJiwqQpRmV6o3lT3uDUsWD83mo4T8_V42CPE0U5Wtv9rh_LvRUMJAIvj6u9rISMjbWc1RikvXGQ1b0GJhD51WlYqvbLctdtYp" style="width: 17.33px; height: 9.33px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title="empty set"/>

<span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 37.07px; height: 16.00px;"><img alt="" src="https://img-question-vn.ruangguru.com/JVTWK5VfrhkRmCu2LnLxesAdoRqDl3DycCui0kaODQBVqDoZFi5QmM7Xq0DOxR12QOtN3sl6N9SBzjM5_1hqO5vROEHI2nXYMzXBXh4wWVKwT6KUxctwCpGj5GBdv8VsBHupZL6o" style="width: 37.07px; height: 16.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/> là nghiệm duy nhất của phương trình <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 69.07px; height: 22.73px;"><img alt="" src="https://img-question-vn.ruangguru.com/9aw0SCTPe6ydY_-fQwpjTVpr4VSP_RKfu6bw0F8UoHv93R6TjodmEUkyOUP81yuFCCmVUJnSnZPRXsp6ewiFwryVGvA6c8fNzqa8LeYjKxjlnCahwfgZQFOrOf1YT-zuri3A7CpG" style="width: 69.07px; height: 22.73px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>

Chọn khẳng định đúng.

<span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 131.00px; height: 26.67px;"><img alt="" src="https://img-question-vn.ruangguru.com/B9E5g7Nkl9NNhKHwMauHL4oC-wvCV9YhOlnVeC_JvFHfqCcq3G01MnneYyBZVxh3zRKqD2kIw8ZgEA1QWX0wAGQIlOEoa6kKCRtbPZfpjbrcMAN1zTlMhBc5K7rtxlVcN6jobezV" style="width: 131.00px; height: 26.67px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>.

Phương trình nào sau đây vô nghiệm?

Nghiệm của phương trình  <span style="overflow: hidden; display: inline-block; margin: 0.00px 0.00px; border: 0.00px solid #000000; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px); width: 152.40px; height: 43.80px;"><img alt="" src="https://img-question-vn.ruangguru.com/traEcFtyaiLsoKx3y8wuZya8wMRlNr897lqiK4vyDkGpvBaU-CGiN67Ifjgj5M7xj0M508GTNVUcDZ2tE7sIUkrXVef7bmB6dvr26uG1ycKvHiuVp_OqOoWPzuzpbkeKauQAA7hd" style="width: 152.40px; height: 43.80px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title=""/>