Question

What is the perimeter of the triangle expressed as a polynomial? 3x+4, x-10, 5x-2

Answers are
9x+8
-9x+6
9x-8
8x-6

Answer 1

Your answer is 9x-8.

3x+4, x-10, 5x-2. If you combine the x's you get 9x. You can combine the numbers however you'd like. I chose to combine +4 and -2. That's 2. 2-10 = -8. Therefore your answer is 9x-8.