Question

(a+b)^2=

Pls tell me the correct answer
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Answer 1

Answer:

a2 + b2 + 2ab this is the formula

Answer 2

Answer:

(a+b)²=a²+2ab+b²

an example is

(8+5)²

here,I can sum up inside bracket and then square it

But here,I am going to show you the use of this property

that is

here,a=8,b=5

then

(8+5)²=8²+2×8×5+5²=64+80+25=169

Therefore 169 is the answer

as 13²=169

Hence verified