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Popular >

expand (z+2)^3

Solution

expand

(z + 2)^{3}

Solution

z^{3} + 6 z^{2} + 12 z + 8

Solution steps

(z + 2)^{3}

Apply Perfect Cube Formula:

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

(z + 2)^{3} = z^{3} + 3 z^{2} \cdot 2 + 3 z \cdot 2^{2} + 2^{3}

= z^{3} + 3 z^{2} \cdot 2 + 3 z \cdot 2^{2} + 2^{3}

Simplify

z^{3} + 3 z^{2} \cdot 2 + 3 z \cdot 2^{2} + 2^{3} : z^{3} + 6 z^{2} + 12 z + 8

= z^{3} + 6 z^{2} + 12 z + 8

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Frequently Asked Questions (FAQ)

What is expand (z+2)^3 ?
The solution to expand (z+2)^3 is z^3+6z^2+12z+8