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 ->  Polynomials-and-rational-expressions -> SOLUTION: True or false: the two expression (x+y)^2 and x^2+y^2 are equal for all real numbers x and y??      Log On


   

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) About Me  (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

:)