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

What is the radius given the diameter is 15?

The path of water from a hose on a fire tugboat can be approximated by the equation y=-0.0055x^2 +1.15x + 5, where y is the height above the ocean and x is the

(01.02 LC) Select the best answer to complete this short dialogue. –Hola, señora Román. ¿________ usted? –Estoy muy bien, gracias. Group of answer choices Adiós

20 pts. Why, do you suppose, the following course offered by a leading university’s School of Theater, Film and Television would be valuable for a student inter

¿Cómo se dice "Can I go to the bathroom"?

What lines characterize Mrs. Peters’s reaction to the men early in the play, and what lines show her feelings changing later in the play?

10/2 is it rational or irrational?

For what kind of shot is a fisheye lens most appropriate? a. candid b. panoramic landscape c. large group d. wildlife

Factor completely 4x^4− 20x^3 + 12x^2

Order these numbers from least to greatest. 37.5%, 1/3, 0.3, 40%, 3/5.