The binomial expansion of (x + y)^2 is x^2 + 2xy + y^2
How to determine the binomial expansion?
The expression is given as:
(x + y)^2
Expand
(x + y)^2 = (x + y)(x + y)
Further, expand
(x + y)^2 = x^2 + xy + xy + y^2
Add the like terms
(x + y)^2 = x^2 + 2xy + y^2
Hence, the binomial expansion of (x + y)^2 is x^2 + 2xy + y^2
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