Algebra Examples

$(9 n^{3} - 4 n^{2} + 2 n - 10) + (- 2 n^{2} + n + 7)$

Step 1

Remove parentheses.

$9 n^{3} - 4 n^{2} + 2 n - 10 - 2 n^{2} + n + 7$

Step 2

Subtract $2 n^{2}$ from $- 4 n^{2}$ .

$9 n^{3} - 6 n^{2} + 2 n - 10 + n + 7$

Step 3

Add $2 n$ and $n$ .

$9 n^{3} - 6 n^{2} + 3 n - 10 + 7$

Step 4

Add $- 10$ and $7$ .

$9 n^{3} - 6 n^{2} + 3 n - 3$