Question

Select all expressions that are equivalent to 2( - 2x + 5) +x

1. 3x + 10
2. - 3x + 10
3. 4x + 10 + x
4. -4x + 10 + x

Answer 1

2) -3x+10

4) -4x+10+x

Explanation:

Use the distributive property to get rid of the parentheses.

(2 × -2x) + (2 × 5) + x

-4x + 10 +x is correct, but the x's can be combined.

(-4x + x) + 10 = -3x + 10