Question

Select all the expressions that are equivalent to -36x+54y−90.

Answer 1

Answer:

b) -18(2x -3y + 5)

d) 18(-2x + 3y - 5)

e) -2(18x - 27y + 45)

Step-by-step explanation:

a) -9( 4x - 6y - 10) = -36x + 54y + 90 not equal

b) -18(2x - 3y + 5) = -36x + 54y - 90 equal

c) -6(6x + 9y - 15) = -36x - 54y + 90 not equal

d) 18(-2x + 3y - 5) = -36x + 54y - 90 equal

e) -2(18x - 27y + 45) = -36x + 54y - 90 equal

f) 2(-18x + 54y - 90) = -36x + 108y - 180 not equal

Answer 2

Answer:

A. -9(4x-6y-10). B. -18(2x-3y+5)

=-36x+54y+90. = -36x+54y-90

=18xy+90. =18xy-90

=108xy. =-72xy

C. -6(6x+9y-15)

=-36x-54+90

=-90xy +90

=0xy