Chapter 8.1, Problem 56PPS

To determine

To find: The sum or difference $\left(3c^2-7\right)+\left(4c+7\right)-\left(c^2+5c-8\right)$

Answer to Problem 56PPS

  $2c^2-c+8$

Explanation of Solution

Given:

  $\left(3c^2-7\right)+\left(4c+7\right)-\left(c^2+5c-8\right)$

Calculation:

The given expression is $\left(3c^2-7\right)+\left(4c+7\right)-\left(c^2+5c-8\right)$

Remove all the parenthesis

  $3c^2-7+4c+7-c^2-5c+8$

Group the like terms

  $3c^2-c^2+4c-5c+8-7+7$

Combine the like terms

  $2c^2-c+8$