What is expand (-8n^2-n+7)(5n+4) ?

The solution to expand (-8n^2-n+7)(5n+4) is -40n^3-37n^2+31n+28

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expand (-8n^2-n+7)(5n+4)

expand

(- 8 n^{2} - n + 7) (5 n + 4)

- 40 n^{3} - 37 n^{2} + 31 n + 28

Solution steps

(- 8 n^{2} - n + 7) (5 n + 4)

Distribute parentheses

= - 8 n^{2} \cdot 5 n - 8 n^{2} \cdot 4 - n \cdot 5 n - n \cdot 4 + 7 \cdot 5 n + 7 \cdot 4

Simplify

- 8 n^{2} \cdot 5 n - 8 n^{2} \cdot 4 - n \cdot 5 n - n \cdot 4 + 7 \cdot 5 n + 7 \cdot 4 : - 40 n^{3} - 37 n^{2} + 31 n + 28

= - 40 n^{3} - 37 n^{2} + 31 n + 28

\frac{345}{9}

(- 7 x)^{2}

x^{2} - 9

- 2.25

(- 4 + 2 i)^{3}

What is expand (-8n^2-n+7)(5n+4) ?
The solution to expand (-8n^2-n+7)(5n+4) is -40n^3-37n^2+31n+28