Question
Answer
$$3x^2+x-(2x^2-3x+1)=x^2+4x-1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}3x^2+x-(2x^2-3x+1)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x^2+x-2x^2+3x-1 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}x^2+4x-1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 2x^2-3x+1 \right) = -2x^2+3x-1 $$ |
| ② | Combine like terms: $$ \color{blue}{3x^2} + \color{red}{x} \color{blue}{-2x^2} + \color{red}{3x} -1 = \color{blue}{x^2} + \color{red}{4x} -1 $$ |
This page was created using
Simplify polynomials calculator