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Popular >

expand (x+dx)^3

Solution

expand

(x + d x)^{3}

Solution

x^{3} + 3 x^{2} d x + 3 x d x^{2} + d x^{3}

Solution steps

(x + d x)^{3}

Apply Perfect Cube Formula:

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

a = x, b = d x

= x^{3} + 3 x^{2} d x + 3 x d x^{2} + d x^{3}

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Frequently Asked Questions (FAQ)

What is expand (x+dx)^3 ?
The solution to expand (x+dx)^3 is x^3+3x^2dx+3xdx^2+dx^3