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Popular >

expand (x^2-4)^3

Solution

expand

(x^{2} - 4)^{3}

Solution

x^{6} - 12 x^{4} + 48 x^{2} - 64

Solution steps

(x^{2} - 4)^{3}

Apply Perfect Cube Formula:

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

(x^{2} - 4)^{3} = (x^{2})^{3} - 3 (x^{2})^{2} \cdot 4 + 3 x^{2} \cdot 4^{2} - 4^{3}

= (x^{2})^{3} - 3 (x^{2})^{2} \cdot 4 + 3 x^{2} \cdot 4^{2} - 4^{3}

Simplify

(x^{2})^{3} - 3 (x^{2})^{2} \cdot 4 + 3 x^{2} \cdot 4^{2} - 4^{3} : x^{6} - 12 x^{4} + 48 x^{2} - 64

= x^{6} - 12 x^{4} + 48 x^{2} - 64

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Frequently Asked Questions (FAQ)

What is expand (x^2-4)^3 ?
The solution to expand (x^2-4)^3 is x^6-12x^4+48x^2-64