SOLUTION: Which value of C in the equation y = x2 - 5x + C will provide zeros at x = -1 and x = 6? C = -6 C = -1 C = 1 C = 6

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Question 983051: Which value of C in the equation y = x2 - 5x + C will provide zeros at x = -1 and x = 6?

C = -6
C = -1
C = 1
C = 6

Answer by ikleyn(52925) About Me  (Show Source):
You can put this solution on YOUR website!

if  x=-1  and  x=6  are the roots of the polynomial  x%5E2+-+5x+%2B+C,  then

x%5E2+-+5x+%2B+C = %28x-%28-1%29%29%2A%28x-6%29 = %28x%2B1%29%2A%28x-6%29.

Hence,  C = -6.