Question

(x + 2y)2 = x² +___+ 4y?
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Answer 1

Answer:

(x+2y)²=x²+___+4y?.

(x+2y)².

It is in the form of (a+b)²=a²+2ab+b² where a=x & b=2y.

(x+2y)²=(x)²+2(x)(2y)+(2y)².

=x²+4xy+4y².

(x+2y)²=x²+4xy+4y².

I think this is your answer.