Question

The question is find the product of -8 and the sum of -2(10x + 3y) and -5(6y -7x)

Answer 1

- 120x + 288y

Explanation:

Begin by summing the 2 expressions

- 2(10x + 3y) - 5(6y - 7x) ← distribute parenthesis

= - 20x - 6y - 30y + 35x ← collect like terms

= 15x - 36y

Now multiply the result by - 8

- 8(15x - 36y) ← distribute

= - 120x + 288y

Answer 2

Explanation:

-2(10x + 3y)

-20x -6y [-2 multiplied by 10x = 20x, negative + positive = negative]

-5(6y -7x)

-30y + 35x

-20x -6y -30y +35x

35x - 20x -30y -6y

15x - 36y

Answer = 15x -36y