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Popular >

expand (x-2y)^2-25

Solution

expand

(x - 2 y)^{2} - 25

Solution

x^{2} - 4 x y + 4 y^{2} - 25

Solution steps

(x - 2 y)^{2} - 25

Apply Perfect Square Formula:

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

(x - 2 y)^{2} = x^{2} - 2 x \cdot 2 y + (2 y)^{2}

= x^{2} - 2 x \cdot 2 y + (2 y)^{2} - 25

Simplify

x^{2} - 2 x \cdot 2 y + (2 y)^{2} : x^{2} - 4 x y + 4 y^{2}

= x^{2} - 4 x y + 4 y^{2} - 25

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Frequently Asked Questions (FAQ)

What is expand (x-2y)^2-25 ?
The solution to expand (x-2y)^2-25 is x^2-4xy+4y^2-25