Question
Answer
$$10+4(3b^2-1)=12b^2+6$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}10+4(3b^2-1)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}10+12b^2-4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}12b^2+6\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( 3b^2-1\right) $ $$ \color{blue}{4} \cdot \left( 3b^2-1\right) = 12b^2-4 $$ |
| ② | Combine like terms: $$ \color{blue}{10} +12b^2 \color{blue}{-4} = 12b^2+ \color{blue}{6} $$ |
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Simplify Rational Expressions