Question

Write an expression that is equivalent to 3x + 39 by factoring out 3.

Answer 1

Divide 39 by 3 to get 13

3x + 13

Hope it helps?

Answer 2

Factoring out three by dividing each term by 3.

3x + 39 = 3(x + 13)

What we have done is use the common factor method. Finding a number or letter that divides into all the terms evenly.