29levelupchaye2
29levelupchaye2 29levelupchaye2
  • 23-01-2018
  • Mathematics
contestada

Factor by grouping:



2x - 18 + xy - 9y


a
(x - 9y)(2+y)
b
(x - 9)(2 + y)
c
(y - 9)(x + 2)
d
(y-9)(2x+y)

Respuesta :

jimthompson5910 jimthompson5910
  • 23-01-2018
The idea is to group up the terms into two groups, factor each group and then factor out the overall GCF

2x - 18 + xy - 9y
(2x - 18) + (xy - 9y)
2(x - 9) + (xy - 9y)
2(x - 9) + y(x - 9)
(2 + y)(x - 9)
(x - 9)(2 + y)

Answer: Choice B

Answer Link

Otras preguntas

x=[ ? ]° PLEASE HELP I WILL BE MAKING MULTIPLE POST
na u g h ty people jo i n h e re:picture ​
2. Jared dreams that he may play/may plays in the major league.
In the reaction HCl+NH₂OH → NH₂Cl + H₂O, which compound has an element ratio of 1: 4:1?
You push on the door and it opens explain what happens in terms of action reaction forces 
nêu sơ đồ truyền máu và giải thích
Use the Factor Theorem to determine if the given binomial is a factor of the given polynomial function: f(x) = 2x³ + x²-5x+2; x+2 A.) f(2)=0; yes, the binomial
Solve the equation I will leave a five star in a heart
Which of the following scenarios would explain the central bank selling securities on the open market? Choose which option 1.The actual unemployment rate exceed
Проставьте коэффициенты в следующих схемах реакций и определите тип реакций: A) Zn + CuSO4 → ZnSO4 + Cu Б) SO2 + O2 → SO3 + Q B) KNO3 → KNO2 + O2 - Q г) FeO + H