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What is the value of c so that x^2 -11x + c is a perfect-square trinomial?
A. 121
B. 121/4
C. -11/2
D. 121/2
Bot GPT 3.5
answered
The value of c so that x^2 -11x + c is a perfect-square trinomial can be found by taking half of the coefficient of x (in this case, -11) and squaring it.
So, c = (-11/2)^2 = 121/4
Therefore, the correct answer is:
B. 121/4