Question

P(x) = (x+2)(x+k)(x-7) if p(5)=0 the value of k is______

Answer 1

Answer:

p(x)= (x+2)(x+k)(x-7)

p(5)=0

x=5

(5+2)(5+k)(5-7)

(7)(5+k)(-2)

35+7k(-2)

-70-14k=0

-14k=70

k=70/14

=35/2

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Answer 2

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