Simplify (5+7x^3+3x^2)+(-12+5x+6x^2)

$(5 + 7 x^{3} + 3 x^{2}) + (- 12 + 5 x + 6 x^{2})$

Step 1

Simplify the expression.

Remove parentheses.

$5 + 7 x^{3} + 3 x^{2} - 12 + 5 x + 6 x^{2}$

Subtract $12$ from $5$ .

$7 x^{3} + 3 x^{2} - 7 + 5 x + 6 x^{2}$

Step 2

Add $3 x^{2}$ and $6 x^{2}$ .

$7 x^{3} + 9 x^{2} - 7 + 5 x$

Step 3

Move $- 7$ .

$7 x^{3} + 9 x^{2} + 5 x - 7$