What is expand (-2x+7)(x^2+2x-4) ?

The solution to expand (-2x+7)(x^2+2x-4) is -2x^3+3x^2+22x-28

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expand (-2x+7)(x^2+2x-4)

expand

(- 2 x + 7) (x^{2} + 2 x - 4)

- 2 x^{3} + 3 x^{2} + 22 x - 28

Solution steps

(- 2 x + 7) (x^{2} + 2 x - 4)

Distribute parentheses

= - 2 x x^{2} - 2 x \cdot 2 x - 2 x (- 4) + 7 x^{2} + 7 \cdot 2 x + 7 (- 4)

Simplify

- 2 x x^{2} - 2 x \cdot 2 x - 2 x (- 4) + 7 x^{2} + 7 \cdot 2 x + 7 (- 4) : - 2 x^{3} + 3 x^{2} + 22 x - 28

= - 2 x^{3} + 3 x^{2} + 22 x - 28

\frac{1}{5} - \frac{4}{5}

\frac{30}{66}

8^{4}

+ 6 - 5

(k + 1)^{2}

What is expand (-2x+7)(x^2+2x-4) ?
The solution to expand (-2x+7)(x^2+2x-4) is -2x^3+3x^2+22x-28