3 years ago

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

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

6 0

Answer:

$\huge\boxed{\sf Right.}$

Step-by-step 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!

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3 years ago

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Hope I helped!