Question
Add.$$\begin{aligned}&13 b^{3}-11 b^{2}+7 b\\&+2 b^{3}+9 b^{2}+8 b\end{aligned}$$
Step 1
The like terms are those which have the same variable and exponent. In this case, we have $13b^{3}$ and $2b^{3}$, $-11b^{2}$ and $9b^{2}$, and $7b$ and $8b$. Show more…
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