Question

Factorise: (a-b)²+4ab​

Answer 1

Answer:

(a-b)²+4ab.

(a-b)².

By using formula (a-b)²=a²-2ab+b² where a=a & b=b.

(a-b)²=(a)²-2(a)(b)+(b)².

=a²-2ab+b².

(a-b)²+4ab=(a²-2ab+b2)+4ab. (Because (a-b)²=a²-2ab+b²).

=a²-2ab+b²+4ab.

=a²+2ab+b². (Because -×+=- & largest number is important).

I think this is your answer.