Simplify (6x-4x^2-7x^3)-(9x^2-5x)

$(6 x - 4 x^{2} - 7 x^{3}) - (9 x^{2} - 5 x)$

Simplify each term.

Apply the distributive property.

$6 x - 4 x^{2} - 7 x^{3} - (9 x^{2}) - (- 5 x)$

Multiply $9$ by $- 1$ .

$6 x - 4 x^{2} - 7 x^{3} - 9 x^{2} - (- 5 x)$

Multiply $- 5$ by $- 1$ .

$6 x - 4 x^{2} - 7 x^{3} - 9 x^{2} + 5 x$

$6 x - 4 x^{2} - 7 x^{3} - 9 x^{2} + 5 x$

Simplify by adding terms.

Add $6 x$ and $5 x$ .

$- 4 x^{2} - 7 x^{3} - 9 x^{2} + 11 x$

Subtract $9 x^{2}$ from $- 4 x^{2}$ .

$- 7 x^{3} - 13 x^{2} + 11 x$

$- 7 x^{3} - 13 x^{2} + 11 x$

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