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

2/3m+a=a+r (solve for m) please show work, thank you!!!

which color does not appear in the color wheel

Brianna received a $398 paycheck last week and then spent $49 of her earnings on a gift. How much of her earnings remained after she bought the gift?

Write the slope- intercept form of the equation of the line passing through the point (3,5) and parallel to the line y=3x+6.

Solve the formula for the specified variable D = 1/2 fk for f

Which tool might be used to limit imports from Cuba but maintain exports to Cuba? a. embargo b. NAFTA c. sanctions d. restricted trade routes

Right AABC has coordinates A(-7, 3), B(-7, 10), and C(-1,3). The triangle is reflected over the x-axis and then reflected again over the y-axis to create AA'B'C

Reflect D(3,3) E(0,5) and F(-2,2) on the x axis and then lable them D' E' and F'

the equation x-3=-13 has the solution of...?

A=3.14r^2 and d=12 A=?