Add. $$ \begin{array}{r}2 m^{2}+8 m+9 \ +\left(5 m^{2}-6 m-2\right)\end{array} $$ The answer is $$ \square $$. (Simplify your answer.)

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UpStudy AI · Accepted Answer

1. Write the sum of the polynomials:
   $$
   (2m^2+8m+9) + (5m^2-6m-2)
   $$

2. Combine like terms:
   - For the $$ m^2 $$ terms:
     $$
     2m^2 + 5m^2 = 7m^2
     $$
   - For the $$ m $$ terms:
     $$
     8m - 6m = 2m
     $$
   - For the constant terms:
     $$
     9 - 2 = 7
     $$

3. Write the simplified sum:
   $$
   7m^2 + 2m + 7
   $$

The answer is $$7m^2+2m+7$$.
The answer is $$7m^2 + 2m + 7$$.

Add. \[ \begin{array}{r}2 m^{2}+8 m+9 \\ +\left(5 m^{2}-6 m-2\right)\end{array} \] The answer is \( \square \). (Simplify your answer.)

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