Seudónimo Seudónimo

03-03-2020
Mathematics

contestada

Factor the expression. 21v2 – 70v + 49
A. 7(3v – 7)(v – 1)
B. (21v – 49)(v – 1)
C. 7(3v + 7)(v + 1)

Respuesta :

dhalwood21 dhalwood21

03-03-2020

Answer:

A. 7(3v-7)(v-1)

Step-by-step explanation:

21v2 - 70v +49

Factor out 7

7(3v2 - 10v +7)

write -10v as a difference

7(3v2 - 3v -7v +7)

Factor out 3v

7(3v × (v-1) - 7 × (v-1))

Factor out (v-1)

7(3v-7)(v-1)

Answer Link

Otras preguntas

there 176 slices of bread in 8 loaves. if there are the same number of slices in each loaf, how many slices of bread are in 5 loaves?

7(m-12)=5m a) -7 b) 6 c) 42 d) -42

at murky middle school, 372 students ride the bus to school. if this number is 60% of high school enrollment, then how many students are enrolled at the school

During the progressive era, president Theodore Roosevelt, William Howard taft, and woodrow wilson broke with the policies of late 19th century president concern

In Loma, Montana, on January 15, 1972, the temperature increased 103 degrees in a 24-hour period. If the lowest temperature on that day was -54 degrees Fahrenhe

Nomadic pastoral societies are centered on _____.

what is the ratio in simplest form 13:39

how do you do use this website i am new so i need some help

which one of the following symptoms indicates that a person is in the alarm stage of stress? A. High Level of Concentration B. Hyperventilation C. Racing Hea

a pulley consists of a _______ wrapped around a ___________