Question

If X=1 is zero of f(x)=X³-2X²+4X+K,then value of K. is.

Answer 1

Step-by-step explanation:

$if \: x = 1 \: is \: a \: zero \\ then \: p(x) = p(1) = {(1)}^{3} - 2 {(1)}^{2} + 4(1) + k = 0 \\ = > 1 - 2 + 4 + k = 0 \\ = > k = 3$

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