Question

What are the factors of (a+b)2-4ab.

Answer 1

Answer:

a2+2ab+b2-4ab

a2-2ab+b2

(a-b)2

Answer 2

Answer:

(a-b)(a-b)

Step-by-step explanation:

(a+b)^2 - 4ab

= a^2 + b^2 + 2ab - 4ab [ Since, (a+b)^2 = a^2 + b^2 + 2ab ]

=a^2 - b^2 -2ab [ If you recognize,this is the expanded form of (a-b)^2 identity ]

= (a-b)^2

= (a-b)(a-b)

I hope it helped!