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Is (-a + b)² = a² - 2ab + b² right or wrong, and why?

User Darethas
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1 Answer

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Answer:


\huge\boxed{\sf Right.}

Explanation:


(-a+b)^2

Let's apply the formula (x+y)² = x² + 2xy + y²

Here, x = -a and y = b

So,

= (-a)² + 2(-a)(b) + (b)²

= a² - 2ab + b²

Hence, it has been proved that (-a + b)² = a² - 2ab + b².


\rule[225]{225}{2}

Hope this helped!

~AH1807

User Sqwk
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