What is expand (a+3)(a^2+9)(a-3) ?

The solution to expand (a+3)(a^2+9)(a-3) is a^4-81

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expand (a+3)(a^2+9)(a-3)

expand

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

a^{4} - 81

Solution steps

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

Expand

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

= (a^{2} - 9) (a^{2} + 9)

Apply Difference of Two Squares

(a^{2} - 9) (a^{2} + 9) : a^{4} - 81

= a^{4} - 81

\frac{2}{3} (3)^{\frac{3}{2}}

\frac{1}{a x} - \frac{1}{a ^{2} + a x} + \frac{1}{a + x}

\frac{x ^{2} + 2 x}{x ^{2} + 4 x + 4}

\frac{3}{2} \div \frac{8}{3}

\frac{1}{s} + \frac{1}{s}

What is expand (a+3)(a^2+9)(a-3) ?
The solution to expand (a+3)(a^2+9)(a-3) is a^4-81