Factor 5a^2-15

$5 a^{2} - 15$

Step 1

Factor $5$ out of $5 a^{2}$ .

$5 (a^{2}) - 15$

Step 2

Factor $5$ out of $- 15$ .

$5 a^{2} + 5 \cdot - 3$

Step 3

Factor $5$ out of $5 a^{2} + 5 \cdot - 3$ .

$5 (a^{2} - 3)$

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