Question

the zeros of the following polynomial 3 X 2 + 15 X + 12​

Answer 1

Answer:

15x+18

Step-by-step explanation:

=3×2+15x+12

=6+15x+12

=15x+18

Answer 2

Answer:-

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• Given:-

$3x^2 + 15x + 12$

• To Find:-

Zeroes of the given polynomial

• Solution:-

$\implies 3x^2 + 15x + 12$

$\implies 3(x^2 + 5x + 4)=0$

$\implies x^2 + 5x + 4 = 0$

$\implies x^2 + 4x + x + 4 = 0$

$\implies x(x + 4) + 1(x + 4) = 0$

$\implies (x + 4)(x + 1) = 0$

• Taking $\bf{(x + 4)}$ :-

$\implies x + 4 = 0$

$\implies \bf{x = -4}$

• Taking $\bf{(x+1)}$:-

$\implies x + 1 = 0$

$\implies \bf{x = -1}$

$\therefore$ The Zeroes of the given Polynomial are $\bf{-4} \: and \: \bf{-1}$

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