04-05-2015
Mathematics

contestada

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)

Respuesta :

sadielynn0210 sadielynn0210

04-05-2015

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

Answer Link

Otras preguntas

How has water influenced the development of civilization in Africa

why did Mr Collins come to the Bennet family looking for a wife?

Help PleaSE:) ->Grammar Which sentence has a pronoun with an unclear, missing, or confusing antecedent? A. The lifeguards sat in tall chairs; they could

what is the geometric mean between 6 and 20?

On a new construction site, an electrician can install a new light fixture in 20 minutes. A project calls for 24 new fixtures to be installed on each of 4 floor

What are the qualities of a good topic? How will you ensure the topic you choose is relevant and interesting?

A flatbed truck is loaded 7,000 pounds of bricks. How many tons of bricks are on the truck?

the area of a rectangular garden is 38 1/4 square meters. the width of the garden is 4 1/2 meters. find the length of the garden

PLEASE HELP I GIVE THANKS

why is it critical to your cells to be near capillaries