What is expand (-2x-1)(x^2+9x+3) ?

The solution to expand (-2x-1)(x^2+9x+3) is -2x^3-19x^2-15x-3

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expand (-2x-1)(x^2+9x+3)

expand

(- 2 x - 1) (x^{2} + 9 x + 3)

- 2 x^{3} - 19 x^{2} - 15 x - 3

Solution steps

(- 2 x - 1) (x^{2} + 9 x + 3)

Distribute parentheses

= - 2 x x^{2} - 2 x \cdot 9 x - 2 x \cdot 3 - 1 \cdot x^{2} - 1 \cdot 9 x - 1 \cdot 3

Simplify

- 2 x x^{2} - 2 x \cdot 9 x - 2 x \cdot 3 - 1 \cdot x^{2} - 1 \cdot 9 x - 1 \cdot 3 : - 2 x^{3} - 19 x^{2} - 15 x - 3

= - 2 x^{3} - 19 x^{2} - 15 x - 3

2 x^{3} - \frac{1}{x ^{2}}

\frac{1}{40} + \frac{1}{60}

1 \frac{1}{4} + 2 \frac{2}{3}

- 14 h - 8 h w

- \frac{x}{4 - x ^{2}}

What is expand (-2x-1)(x^2+9x+3) ?
The solution to expand (-2x-1)(x^2+9x+3) is -2x^3-19x^2-15x-3