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

Write as an expression. 13 more than x times 5

01.05 HC religious beliefs developed into civilizations because people did not have to worry as much about: A: supplying their basic needs B: asking the gods fo

Convert Octal 623, to Decimal number

How did the boss initially react when he heard about his sons grave. The fly

Match each feature of epic poetry to the detail from Gilgamesh that illustrates it. Humbaba, a monster that guards the Cedar a vast setting Forest a supernatura

Solve the equation. Check your solution. -4y + =35y-6

Vhich sentence best describes a theme of "The Three Brass Pennies"? Making wishes gives us hope and makes life worth living. Happiness comes from appreciating t

Can someone please help me please?

Century Page : Date: Il what should one abandon and take ? from others 2 $

Solve for y. 7y - 6y - 10 = 13 y = -23 y = -3 y = 3 y = 23