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Popular >

expand a(a-3)(a+3)

Solution

expand

a (a - 3) (a + 3)

Solution

a^{3} - 9 a

Solution steps

a (a - 3) (a + 3)

Expand

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

= a (a^{2} - 9)

Apply the distributive law:

a (b - c) = ab - a c

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

= a a^{2} - a \cdot 9

Simplify

a a^{2} - a \cdot 9 : a^{3} - 9 a

= a^{3} - 9 a

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Frequently Asked Questions (FAQ)

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