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Popular >

expand (6a+3)^3

Solution

expand

(6 a + 3)^{3}

Solution

216 a^{3} + 324 a^{2} + 162 a + 27

Solution steps

(6 a + 3)^{3}

Apply Perfect Cube Formula:

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

(6 a + 3)^{3} = (6 a)^{3} + 3 (6 a)^{2} \cdot 3 + 3 \cdot 6 a \cdot 3^{2} + 3^{3}

= (6 a)^{3} + 3 (6 a)^{2} \cdot 3 + 3 \cdot 6 a \cdot 3^{2} + 3^{3}

Simplify

(6 a)^{3} + 3 (6 a)^{2} \cdot 3 + 3 \cdot 6 a \cdot 3^{2} + 3^{3} : 216 a^{3} + 324 a^{2} + 162 a + 27

= 216 a^{3} + 324 a^{2} + 162 a + 27

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Frequently Asked Questions (FAQ)

What is expand (6a+3)^3 ?
The solution to expand (6a+3)^3 is 216a^3+324a^2+162a+27