Question

find all zeros of x^3 + 3 x^2 - 4x-12 if one of its zero is -3​

Answer 1

Step-by-step explanation:

One of the zeroes of this polynomial

${x}^{3} + 3 {x}^{2} - 4x - 12$

is -3.

${x}^{3} + 3 {x}^{2} - 4x - 12 = > {x}^{2} (x + 3) -$

$4(x + 3) = > ( {x}^{2} - 4)(x + 3) = >$

$(x - 2)(x + 2)( + 3)$

So all zeroes of the above polynomial are 2,-2 and -3. Hope it helps you.

Answer 2

Answer:

Here's your answer

Hope it helps you..