Question
Answer
$$7x^2-6x+1-(2+3x)=7x^2-9x-1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}7x^2-6x+1-(2+3x)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7x^2-6x+1-2-3x \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}7x^2-9x-1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 2+3x \right) = -2-3x $$ |
| ② | Combine like terms: $$ 7x^2 \color{blue}{-6x} + \color{red}{1} \color{red}{-2} \color{blue}{-3x} = 7x^2 \color{blue}{-9x} \color{red}{-1} $$ |
This page was created using
Simplify polynomials calculator