Question

if x=1
is a zero of the polynomial
F(x) = x3 - 2x²+4x+ k, find the value of K.​

Answer 1

k = -3

$f(x) = x^{3} - 2x^{2} + 4x + k\\f(1) = 1 -2 +4 + k\\0 = 3 +k \\\\.: k = -3$

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