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Popular >

expand (5a-2b)^2

Solution

expand

(5 a - 2 b)^{2}

Solution

25 a^{2} - 20 ab + 4 b^{2}

Solution steps

(5 a - 2 b)^{2}

Apply Perfect Square Formula:

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

(5 a - 2 b)^{2} = (5 a)^{2} - 2 \cdot 5 a \cdot 2 b + (2 b)^{2}

= (5 a)^{2} - 2 \cdot 5 a \cdot 2 b + (2 b)^{2}

Simplify

(5 a)^{2} - 2 \cdot 5 a \cdot 2 b + (2 b)^{2} : 25 a^{2} - 20 ab + 4 b^{2}

= 25 a^{2} - 20 ab + 4 b^{2}

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Frequently Asked Questions (FAQ)

What is expand (5a-2b)^2 ?
The solution to expand (5a-2b)^2 is 25a^2-20ab+4b^2