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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