Simplify (8r^6s^3-9r^5s^4+3r^4s^5)-(2r^4s^5-5r^3s^6-4r^5s^4)

$(8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5}) - (2 r^{4} s^{5} - 5 r^{3} s^{6} - 4 r^{5} s^{4})$

Simplify each term.

Apply the distributive property.

$8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5} - (2 r^{4} s^{5}) - (- 5 r^{3} s^{6}) - (- 4 r^{5} s^{4})$

Simplify.

Multiply $2$ by $- 1$ .

$8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5} - 2 (r^{4} s^{5}) - (- 5 r^{3} s^{6}) - (- 4 r^{5} s^{4})$

Multiply $- 5$ by $- 1$ .

$8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5} - 2 (r^{4} s^{5}) + 5 (r^{3} s^{6}) - (- 4 r^{5} s^{4})$

Multiply $- 4$ by $- 1$ .

$8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5} - 2 (r^{4} s^{5}) + 5 (r^{3} s^{6}) + 4 (r^{5} s^{4})$

Remove parentheses.

$8 r^{6} s^{3} - 9 r^{5} s^{4} + 3 r^{4} s^{5} - 2 r^{4} s^{5} + 5 r^{3} s^{6} + 4 r^{5} s^{4}$

Simplify by adding terms.

Add $- 9 r^{5} s^{4}$ and $4 r^{5} s^{4}$ .

$8 r^{6} s^{3} - 5 r^{5} s^{4} + 3 r^{4} s^{5} - 2 r^{4} s^{5} + 5 r^{3} s^{6}$

Subtract $2 r^{4} s^{5}$ from $3 r^{4} s^{5}$ .

$8 r^{6} s^{3} - 5 r^{5} s^{4} + 1 r^{4} s^{5} + 5 r^{3} s^{6}$

Multiply $r^{4}$ by $1$ .

$8 r^{6} s^{3} - 5 r^{5} s^{4} + r^{4} s^{5} + 5 r^{3} s^{6}$