13. factor $15x^{4}+9x^{2}$.a. $3x^{2}(5x^{2}+3)$b. $x^{2}(15x^{2}+9)$c… | Sovi AI

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$13. factor $15x^{4}+9x^{2}$.a. $3x^{2}(5x^{2}+3)$b. $x^{2}(15x^{2}+9)$c…$

Question

factor $15x^{4}+9x^{2}$.a. $3x^{2}(5x^{2}+3)$b. $x^{2}(15x^{2}+9)$c. $3x^{2}(5x^{2}+1)$d. $3x^{2}(x^{2}+5)$

Explanation:

Step1: Find GCF of terms

GCF of $15x^4$ and $9x^2$ is $3x^2$.

Step2: Factor out the GCF

$15x^4 + 9x^2 = 3x^2(5x^2 + 3)$

Answer:

a. $3x^{2}(5x^{2}+3)$