Factor 15x^2-22x-5

$15 x^{2} - 22 x - 5$

Step 1

For a polynomial of the form $a x^{2} + b x + c$ , rewrite the middle term as a sum of two terms whose product is $a \cdot c = 15 \cdot - 5 = - 75$ and whose sum is $b = - 22$ .

Factor $- 22$ out of $- 22 x$ .

$15 x^{2} - 22 (x) - 5$

Rewrite $- 22$ as $3$ plus $- 25$

$15 x^{2} + (3 - 25) x - 5$

Apply the distributive property.

$15 x^{2} + 3 x - 25 x - 5$

Step 2

Factor out the greatest common factor from each group.

Group the first two terms and the last two terms.

$(15 x^{2} + 3 x) - 25 x - 5$

Factor out the greatest common factor (GCF) from each group.

$3 x (5 x + 1) - 5 (5 x + 1)$

Step 3

Factor the polynomial by factoring out the greatest common factor, $5 x + 1$ .

$(5 x + 1) (3 x - 5)$

Factor 15x^2-22x-5

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