Factor 3x^2+9

$3 x^{2} + 9$

Step 1

Factor $3$ out of $3 x^{2}$ .

$3 (x^{2}) + 9$

Step 2

Factor $3$ out of $9$ .

$3 x^{2} + 3 \cdot 3$

Step 3

Factor $3$ out of $3 x^{2} + 3 \cdot 3$ .

$3 (x^{2} + 3)$

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