Question

If the length of a rectangular sandbox is 5x+3 and the width is 2x-4, what is the perimeter of the sandbox?

Answer 1

14x - 2

Explanation:

The opposite sides of the rectangle are congruent, then perimeter (P) is

P = 2(5x + 3) + 2(2x - 4) ← distribute parenthesis

= 10x + 6 + 4x - 8 ← collect like terms

= 14x - 2

Answer 2

14x-2

Explanation:

This is the right answer