Question

Simplify -7(4r -3)
A) -28r + 21
B) -28r -10
C) -28r - 21
D) -3r -10

Answer 1

For this case we must simplify the following expression:

`-7 (4r-3)`

We apply distributive property to the terms within the parenthesis taking into account that
`- * + = -` and
`- * - = +`.

The distributive property states that:

`a (b + c) = ab + ac`

So:

`-28r + 21`

Answer:

`-28r + 21`

Option A

Answer 2

A) -28r + 21

Explanation:

-7(4r -3)

Distribute the -7

-7*4r -7*(-3)

-28r +21