azielur azielur
  • 18-12-2021
  • Mathematics
contestada

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

Respuesta :

ujalakhan18
ujalakhan18 ujalakhan18
  • 18-12-2021

Answer:

[tex]\huge\boxed{\sf Right.}[/tex]

Step-by-step explanation:

[tex](-a+b)^2[/tex]

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.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

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