Question

If x = 1 is a zero of the polynomial f (x) = x³ – 2x² + 4x + k, write the value of k.

Answer 1

Answer:

k=1

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1

Answer 2

Answer:

f(x)=x³ – 2x² + 4x + k

f(1)=(1)³–2(1)²+4(1)+ k

=1 – 2 +4 + k

=3+k

k= –3

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