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Popular >

expand-x(x+3)(x-3)

Solution

expand

- x (x + 3) (x - 3)

Solution

- x^{3} + 9 x

Solution steps

- x (x + 3) (x - 3)

Expand

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

= - x (x^{2} - 9)

Apply the distributive law:

a (b - c) = ab - a c

- x (x^{2} - 9) = - x x^{2} - (- x) \cdot 9

= - x x^{2} - (- x) \cdot 9

Simplify

- x x^{2} - (- x) \cdot 9 : - x^{3} + 9 x

= - x^{3} + 9 x

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Frequently Asked Questions (FAQ)

What is expand-x(x+3)(x-3) ?
The solution to expand-x(x+3)(x-3) is -x^3+9x