What is the value of K when the equation (x ^ 2-4) k-4x ^ 2 + KX + 1 = 0 is a quadratic equation of one variable about x~~
If it is a quadratic equation of one variable about X, then we need to ensure that the coefficient of the quadratic term is not zero. Then K is not equal to four, which is the correct answer
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- 2. (K-3) x ^ (K-2) + x ^ 2 + KX + 1 = 0 is a quadratic equation of one variable about X, then the value of K is Note that it's a quadratic equation of one variable, I think it's 2.3.4, But the teacher said 2 is wrong, thank you very much On the first floor, when you say k = 2, the original formula should be - 1 + x ^ 2 + 2x + 1 = o x ^ 2 + 2x = 0 If the equation has no solution, can't it be a quadratic equation with one variable When x = 2, can (K-3) x ^ (K-2) be regarded as no or - 1
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