Chapter 8.1, Problem 14CYU

To determine

To find: The sum or difference $\left(8y-4y^2\right)+\left(3y-9y^2\right)$

Answer to Problem 14CYU

  $-13y^2+11y$

Explanation of Solution

Given:

  $\left(8y-4y^2\right)+\left(3y-9y^2\right)$

Calculation:

The given expression is $\left(8y-4y^2\right)+\left(3y-9y^2\right)$

Distribute the positive sign over the parenthesis

  $8y-4y^2+3y-9y^2$

Group the like terms

  $\left(-4y^2-9y^2\right)+\left(3y+8y\right)$

Combine the like terms

  $-13y^2+11y$