Simplify 3x^2+2x+7x^3+(10x^2+6x+9)

$3 x^{2} + 2 x + 7 x^{3} + (10 x^{2} + 6 x + 9)$

Step 1

Remove parentheses.

$3 x^{2} + 2 x + 7 x^{3} + 10 x^{2} + 6 x + 9$

Step 2

Add $3 x^{2}$ and $10 x^{2}$ .

$13 x^{2} + 2 x + 7 x^{3} + 6 x + 9$

Step 3

Add $2 x$ and $6 x$ .

$13 x^{2} + 7 x^{3} + 8 x + 9$

Step 4

Reorder $13 x^{2}$ and $7 x^{3}$ .

$7 x^{3} + 13 x^{2} + 8 x + 9$

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