Question

What are the two formulas of (a+b)^2 ?

The person who knows both will write only...​

Answer 1

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Answer 2

$(a + b)^{2} = {a}^{2} + 2 \times a \times b + {b}^{2}$

$(a - b) ^{2} = a ^{2} - 2 \times a \times b + b ^{2}$

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