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For the square of quadratic trinomial x minus 10x plus 36, Xiao Cong made the following conclusion: no matter what real number x takes, its value can not be equal to 12. Do you agree with him? Explain your reasons
Suppose x ^ 2-10x + 36 = 12
Then x ^ 2-10x + 24 = 0
(x-6)(x-4)=0
X = 4 or x = 6
So as long as x = 6 or 4, x ^ 2-10x + 36 equals 12
Xiao Cong is wrong
Remember to adopt yo pro
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