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Popular >

expand (x^3-3)^3

Solution

expand

(x^{3} - 3)^{3}

Solution

x^{9} - 9 x^{6} + 27 x^{3} - 27

Solution steps

(x^{3} - 3)^{3}

Apply Perfect Cube Formula:

(a - b)^{3} = a^{3} - 3 a^{2} b + 3 a b^{2} - b^{3}

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

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

Simplify

(x^{3})^{3} - 3 (x^{3})^{2} \cdot 3 + 3 x^{3} \cdot 3^{2} - 3^{3} : x^{9} - 9 x^{6} + 27 x^{3} - 27

= x^{9} - 9 x^{6} + 27 x^{3} - 27

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Frequently Asked Questions (FAQ)

What is expand (x^3-3)^3 ?
The solution to expand (x^3-3)^3 is x^9-9x^6+27x^3-27