Question

x³-4x+5x-k is completely division by x-4, then find value of k

Answer 1

Hii ☺ !!



X = 4

x³ - 4x + 5x - k = 0


4³ - 4 × 4 + 5 × 4 - k = 0


64 - 16 + 20 - k = 0



84 - 16 - k = 0


-k + 68 = 0


-k = -68

k = 68

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer...

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x - 4 =0

x =4

p (x) = x³-4x+5x-k

p(4) = 4^3 + 4 - k

k = 64 + 4

k = 68.
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