If x is less than 2, what is the absolute value of 2x minus 5

If x < 2
│2X-5│＞1

When x = - 1, the value of quadratic trinomial x2 + MX + 1 is equal to 0, then when x = 1, X2 + MX + 1=______ ．

When x = - 1, X2 + MX + 1 = 0, then M = 2, substituting M = 2, x = 1, we can get: x2 + MX + 1 = 4, so the answer is: 4

In the product of (x's Square - MX + 2) (X-2), if the quadratic coefficient of X is zero, then the value of M is zero

Hello
The quadratic coefficient of X is zero
-2-m=0
m=-2
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