Question

Factor completely −5x2 + 10x − 15

Answer 1

-5(x^2-2x+3

Explanation:

I took the test. it's correct

Answer 2

Explanation:

5 x 2 − 10 x − 15 = 5 ( x + 1 ) ( x− 3 )

Explanation:

5 x 2 − 10 x − 15

Factor out the GCF 5.

5 ( x 2 − 2x − 3 ) Factor ( x 2 − 2 x − 3 ) .

(Keep the 5 .)

5 ( x + 1 ) ( x − 3 )