What is the identity of x²+y²
Answers
Answered by
5
Answer:
(x+y)²-2xy
Step-by-step explanation:
(x+y)²-2xy
=x²+2xy+y²-2xy
=x²+y²
Answered by
1
Answer:
(x+y)^2 - 2*x*y = x^2 + y^2
Step-by-step explanation:
(x+y)^2 - 2*x*y =
=x^2 + y^2 + 2*x*y - 2*x*y
=x^2 + y^2 + 2*x*y
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