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Popular >

expand (4y-1)^3

Solution

expand

(4 y - 1)^{3}

Solution

64 y^{3} - 48 y^{2} + 12 y - 1

Solution steps

(4 y - 1)^{3}

Apply Perfect Cube Formula:

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

(4 y - 1)^{3} = (4 y)^{3} - 3 (4 y)^{2} \cdot 1 + 3 \cdot 4 y \cdot 1^{2} - 1^{3}

= (4 y)^{3} - 3 (4 y)^{2} \cdot 1 + 3 \cdot 4 y \cdot 1^{2} - 1^{3}

Simplify

(4 y)^{3} - 3 (4 y)^{2} \cdot 1 + 3 \cdot 4 y \cdot 1^{2} - 1^{3} : 64 y^{3} - 48 y^{2} + 12 y - 1

= 64 y^{3} - 48 y^{2} + 12 y - 1

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Frequently Asked Questions (FAQ)

What is expand (4y-1)^3 ?
The solution to expand (4y-1)^3 is 64y^3-48y^2+12y-1