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

Carbon dioxide enters the inner spaces of the leaf through the _____.
What are the benefits of removal for the United States, according to President Jackson?
why would americans have worried about a potential missile gap
How to measure 1/3 cup without measuring cup?
What type of therapy seeks to challenge and change netative and disparaging thoughts?
What happen to most bills introduced in congress?
What do nonmetals usually do in a chemical reaction? a. they usually lose electrons. b. they usually form negative ions. c. they usually react with metalloid
what does active voice indicate?
How to change from passive voice to active voice? the tidal effects of the ocean are created by the moons orbit around the earth
A word to describe change over time is : a Reproduction b Evolution c Organism d Cell