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Popular >

expand (y+5)^3

Solution

expand

(y + 5)^{3}

Solution

y^{3} + 15 y^{2} + 75 y + 125

Solution steps

(y + 5)^{3}

Apply Perfect Cube Formula:

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

(y + 5)^{3} = y^{3} + 3 y^{2} \cdot 5 + 3 y \cdot 5^{2} + 5^{3}

= y^{3} + 3 y^{2} \cdot 5 + 3 y \cdot 5^{2} + 5^{3}

Simplify

y^{3} + 3 y^{2} \cdot 5 + 3 y \cdot 5^{2} + 5^{3} : y^{3} + 15 y^{2} + 75 y + 125

= y^{3} + 15 y^{2} + 75 y + 125

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Frequently Asked Questions (FAQ)

What is expand (y+5)^3 ?
The solution to expand (y+5)^3 is y^3+15y^2+75y+125