Question

Which identity is in the equation:

${x}^{2} + 2(x)(y) + {y}^{2}$


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Answer 1

x²+2xy+y² = (x+y)²

The identity used is; (a+b)² = a²+b²+2ab

Answer 2

Step-by-step explanation:

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

it's a right identity