Answer
$$5y^2+2-(7y^2-2y-2)=-2y^2+2y+4$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5y^2+2-(7y^2-2y-2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5y^2+2-7y^2+2y+2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-2y^2+2y+4\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 7y^2-2y-2 \right) = -7y^2+2y+2 $$ |
| ② | Combine like terms: $$ \color{blue}{5y^2} + \color{red}{2} \color{blue}{-7y^2} +2y+ \color{red}{2} = \color{blue}{-2y^2} +2y+ \color{red}{4} $$ |
This page was created using
Simplify polynomials calculator