What is expand (x-4)(x^2-3x-9) ?

The solution to expand (x-4)(x^2-3x-9) is x^3-7x^2+3x+36

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expand (x-4)(x^2-3x-9)

expand

(x - 4) (x^{2} - 3 x - 9)

x^{3} - 7 x^{2} + 3 x + 36

Solution steps

(x - 4) (x^{2} - 3 x - 9)

Distribute parentheses

= x x^{2} + x (- 3 x) + x (- 9) - 4 x^{2} - 4 (- 3 x) - 4 (- 9)

Simplify

x x^{2} + x (- 3 x) + x (- 9) - 4 x^{2} - 4 (- 3 x) - 4 (- 9) : x^{3} - 7 x^{2} + 3 x + 36

= x^{3} - 7 x^{2} + 3 x + 36

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

\frac{24 225 x ^{22}}{4 5 x ^{4}}

\frac{10}{x}

(\frac{8}{27})^{\frac{- 1}{3}}

x y + x^{3} y^{2}

What is expand (x-4)(x^2-3x-9) ?
The solution to expand (x-4)(x^2-3x-9) is x^3-7x^2+3x+36