Chapter 8.1, Problem 37PPS

To determine

To find: The sum or difference $\left(z^2+z\right)+\left(z^2-11\right)$

Answer to Problem 37PPS

  $2z^2+z-11$

Explanation of Solution

Given:

  $\left(z^2+z\right)+\left(z^2-11\right)$

Calculation:

The given expression is $\left(z^2+z\right)+\left(z^2-11\right)$

Remove the parenthesis

  $z^2+z+z^2-11$

Group the like terms

  $z^2+z^2+z-11$

Combine the like terms

  $2z^2+z-11$