Factor completely. 15a² + 55a - 20 A. 5(3a² + 11a - 4) B. 5(a + 4)(3a - 1) C. (5a + 2)(3a - 10) D. (5a + 4)(3a - 5)

Question

asked Apr 17, 2016 45.0k views

1 Answer

asked Mar 3, 2024 210k views

Niner asked Mar 3, 2024

by Niner

7.8k points

1 answer

0 votes

210k views

asked Jun 27, 2021 223k views

Mson asked Jun 27, 2021

by Mson

8.3k points

1 answer

1 vote

223k views

asked Oct 11, 2024 113k views

Iobelix asked Oct 11, 2024

7.9k points

1 answer

5 votes

113k views

Arghtype · Answer 1 · 2016-04-23T22:38:53+0000

to help explain how you get A for the answer:
work backwards
5(3a²+11a-4)
multiply everything by 5
5×3a²=15a²
5×11a=55a
5×-4=-20
15a²+55a-20