kemplewi3666 kemplewi3666
  • 01-09-2017
  • Mathematics
contestada

Which is a factor of 2a(cubed) - 2a(squared) - 7a + 7?
A) (a - 1)
B) (a + 1)
C) (a - 7)
D) (a + 7)

Respuesta :

choixongdong
choixongdong choixongdong
  • 01-09-2017
2a(cubed) - 2a(squared) - 7a + 7
= 2a^3 - 2a^2 - 7a + 7
= 2a^2 (a -1) - 7 (a -1)
= (a - 1)(2a^2 - 7)

(a - 1) and 
(2a^2 - 7) are factors 

answer
A) (a - 1) 
Answer Link

Otras preguntas

Winter math packet
Which of the following is responsible for conducting an independent examination of a company's financial statements and records? -Auditor -Bookkeeper -Stakehold
Jim keeps track of his driving so that he can take a tax deduction. Jim drove 450 miles last month, in comparison to 261 miles this month. By what percent has h
What is the answer to this math problem it's confusing? 40-(27+3)/2
As an estimation we are told £3 is €4. Convert £22.50 to euros.
change the following sentence into passive voice - all the members elected Ravi as the captain​
73.9 meters is equal to kilometers
Need help someone please help me!!
Which phrase best completes the diagram? Functions of the Media in a Democracy Investigating the goverment Informing voters ? A. Helping set political agendas B
Credit unions tend to give credit only to whom? OA Persons with no credit history. O B. Members of the credit union. Oc. Persons with a bad credit history. OD.