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Popular >

expand (n-3)^3

Solution

expand

(n - 3)^{3}

Solution

n^{3} - 9 n^{2} + 27 n - 27

Solution steps

(n - 3)^{3}

Apply Perfect Cube Formula:

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

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

= n^{3} - 3 n^{2} \cdot 3 + 3 n \cdot 3^{2} - 3^{3}

Simplify

n^{3} - 3 n^{2} \cdot 3 + 3 n \cdot 3^{2} - 3^{3} : n^{3} - 9 n^{2} + 27 n - 27

= n^{3} - 9 n^{2} + 27 n - 27

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Frequently Asked Questions (FAQ)

What is expand (n-3)^3 ?
The solution to expand (n-3)^3 is n^3-9n^2+27n-27