Pre-Algebra Examples

$(10 x^{4} + 3 x^{2} - 5 x + 4) + (7 x^{5} - 5 x^{4} + 2 x - 9)$

Step 1

Remove parentheses.

$10 x^{4} + 3 x^{2} - 5 x + 4 + 7 x^{5} - 5 x^{4} + 2 x - 9$

Step 2

Subtract $5 x^{4}$ from $10 x^{4}$ .

$5 x^{4} + 3 x^{2} - 5 x + 4 + 7 x^{5} + 2 x - 9$

Step 3

Add $- 5 x$ and $2 x$ .

$5 x^{4} + 3 x^{2} - 3 x + 4 + 7 x^{5} - 9$

Step 4

Subtract $9$ from $4$ .

$5 x^{4} + 3 x^{2} - 3 x + 7 x^{5} - 5$