Chapter 8.1, Problem 35PPS

To determine

To find: The sum or difference $\left(2x+3x^2\right)-\left(7-8x^2\right)$

Answer to Problem 35PPS

  $11x^2+2x-7$

Explanation of Solution

Given:

  $\left(2x+3x^2\right)-\left(7-8x^2\right)$

Calculation:

The given expression is $\left(2x+3x^2\right)-\left(7-8x^2\right)$

Remove the parenthesis

  $2x+3x^2-7+8x^2$

Group the like terms

  $3x^2+8x^2+2x-7$

Combine the like terms

  $11x^2+2x-7$