SOLUTION: Find the roots of the polynomial function. f(x)=(x+5)(x^2+7)-(x+5)(6x+2)

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Question 187655: Find the roots of the polynomial function.
f(x)=(x+5)(x^2+7)-(x+5)(6x+2)

Answer by user_dude2008(1862)   (Show Source): You can put this solution on YOUR website!
f(x)=(x+5)(x^2+7)-(x+5)(6x+2)

f(x)=(x+5)[(x^2+7)-(6x+2)]


f(x)=(x+5)(x^2+7-6x-2)


f(x)=(x+5)(x^2-6x+5)


f(x)=(x+5)(x-5)(x-1)

0=(x+5)(x-5)(x-1)


x+5=0, x-5=0, or x-1=0

Roots: x=-5, x=5, or x=1



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