Question

XX = 3 in a zero of the polynomial p into X is equals to x cube minus 3 X square + 3 X + K find the value of k​

Answer 1

k= -9

Step-by-step explanation:

(3x3x3)-3(3x3)+3x 3 +k= 0

27-27+9+ k =0

k= -9

Answer 2

$\underline{\rule{261}{2}}$

Correct question :-

x = 3 is a zero of the polynomial p(x) = x³ - 3x² + 3x + k. Find the value of k.

Solution :-

As 3 is a zero of p(x), then p(3) = 0.

⇒p(3) = (3)³ - 3(3)² + 3(3) + k = 0

⇒27 - 27 + 9 + k = 0

⇒9 + k = 0

⇒k = -9

∴ So, the value of k is -9.

$\underline{\rule{261}{2}}$

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