Question

If 2 is one of the zeroes of the polynomial p x =2xcube +3x-p, then find the value of p

Answer 1

Very easy. Here:

p(x) = 2x³+3x-p

p(2) = 2(2)³+3(2)-p

= 16+6-p=0

22-p=0

-p= -22

p = 22

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