Question

what is a + b whole square ?
please answer . ​

Answer 1

Answer: a² + 2ab + b²

Explanation:

( a+ b )²

= (a + b) (a + b)

= a (a + b) + b ( a + b)

= a² + ab + ba + b²

= a² + ab + ab + b²

= a² + 2ab + b²

For eg:

Let a = 2  and b = y

∴ (a + b)² = (2 + y)²

= 2² + 2 (2)(y) + y²

= 4 + 4y + y²

= y² + 4y + 4

Hence, proved.

Hope you  understood.

Thank You.