What is expand (9m+4n-1)(2m+8) ?

The solution to expand (9m+4n-1)(2m+8) is 18m^2+70m+8mn+32n-8

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expand (9m+4n-1)(2m+8)

expand

(9 m + 4 n - 1) (2 m + 8)

18 m^{2} + 70 m + 8 mn + 32 n - 8

Solution steps

(9 m + 4 n - 1) (2 m + 8)

Distribute parentheses

= 9 m \cdot 2 m + 9 m \cdot 8 + 4 n \cdot 2 m + 4 n \cdot 8 - 1 \cdot 2 m - 1 \cdot 8

Simplify

9 m \cdot 2 m + 9 m \cdot 8 + 4 n \cdot 2 m + 4 n \cdot 8 - 1 \cdot 2 m - 1 \cdot 8 : 18 m^{2} + 70 m + 8 mn + 32 n - 8

= 18 m^{2} + 70 m + 8 mn + 32 n - 8

- 1 \cdot y

- 14 y^{2} z^{4} + 49 x y^{4} z^{7}

(- 3 x + 5)^{2} + (- 3 x + 5) + 3

\frac{1}{2} x \cdot 2 x

(3 x^{2} + 4 y^{3})^{3}

What is expand (9m+4n-1)(2m+8) ?
The solution to expand (9m+4n-1)(2m+8) is 18m^2+70m+8mn+32n-8