Question

if 2 is a zero of the polynomial p(x) =x^3-2kx^2+kx-1, find the value of k.​

Answer 1

Step-by-step explanation:

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Answer 2

Let p(x) = x³-2kx²+kx-1

Since 2 is a zero of p(x),

p(2) = 0

p(2) = 2³ - 2k*2² +2k - 1 = 0

          8-8k+2k-1 = 0

           7 = 6k

           k = 7/6

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