Question

Find the value of k , if (x-2) is a factor of 8 x3 + 4x 2 - 3x + k

Answer 1

g(x) = x-2

x = 2

p(x) = 8x³ + 4x² - 3x + k

p(2) = 8(2)³ + 4(2)² - 3(2) + k

= 8×8 + 4×4 - 6 + k

= 64 + 16 - 6 + k

= 64 + 10

= 74

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