Question

( a-b)² is equal to ​

Answer 1

$\huge\sf\underline{Answer}$

( a - b)² = a² + b² -2ab

Proof:-

(a-b)² = (a-b)(a-b)

a(a-b) -b(a-b)

a² - ab -ab + b²

a² -2ab + b²

So, (a-b)² = a² -2ab + b²

Know more :-

(a + b)² = a²+ b² +2ab

(a + b)³ = a³ +b³ +3ab(a+b)

( a - b)³ = a³ +b³ -3ab(a + b)

a³ - b³ = (a-b)(a² - ab + b²)

a³ + b³ = (a+b)(a² -ab + b²)

Answer 2

(a-b)² is equal to?

Answer:

a² - 2ab + b²

Explanation:

You just have to expand the expression

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