Joy is training for a triathlon. She runs a distance of 2x miles, cycles a distance of (x2 + 7) miles, and swims a distance of (x - 2) miles. Which simplified expression is equivalent to the total distance, in miles, Joy covers?

x2 + 3x + 5

x2 + 3x + 9

3x2 + 5

3x2 + 9

Question

Joy is training for a triathlon. She runs a distance of 2x miles, cycles a distance of (x2 + 7) miles, and swims a distance of (x - 2) miles. Which simplified expression is equivalent to the total distance, in miles, Joy covers?

 x2 + 3x + 5

 x2 + 3x + 9

 3x2 + 5

 3x2 + 9

whpalmer4 · Answer

What is $2x + (x^2+7) + (x-2)$ after you collect like terms?