SOLUTION: True or false: the two expression (x+y)^2 and x^2+y^2 are equal for all real numbers x and y??

SOLUTION: True or false: the two expression (x+y)^2 and x^2+y^2 are equal for all real numbers x and y??

Algebra.Com

Question 749585: True or false: the two expression (x+y)^2 and x^2+y^2 are equal for all real numbers x and y??
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
False, try x=1 and y=-1

One expression is the sum of two squares and the other is the square of a sum - they are different

:)
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