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The sum of 3r2 + 58 - 6 and -r2 + 3x + 9 is?
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1 vote
The sum of 3r2 + 58 - 6 and -r2 + 3x + 9 is?

User Mahbubul Islam
by
5.3k points

1 Answer

7 votes

Answer:

2r ^2 +61+3x

Explanation:

1 Collect like terms.

(3{r}^{2}-{r}^{2})+(58-6+9)+3x(3r

​2

​​ −r

​2

​​ )+(58−6+9)+3x

2 Simplify.

2{r}^{2}+61+3x2r

​2

​​ +61+3x

User Chris Slowik
by
5.0k points
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