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

13 + 10.12 + 131 + 39 Rewrite the expression 12 + 25 + 1 T(I) (I). In the form 91x)+la

A group of doctors are conducting an experiment to test a new nutritional supplement. They randomly selected 600 subjects, assigning 300 subjects to receive the

PLZ HELPPPPPPPPPP!!!!

Can anybody help with this GCSE physics question?

for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?

Citing information is mandatory because A. experts of the field want to add additional examples to your work. B. it diminishes the credibility of your work. C.

A package of colored paper contains 20 pieces of yellow paper. This represents 25% of the total pieces of colored paper in the package. How many total pieces of

What’s the answer here please

(a)The computer network that covers the whole city is called

A circle is centered on point B. Points A, C and D lie on its circumference. If ZABC measures 124°, what does ZADC measure?