1.

-2*x*y - z^2 %2B 22*x^2 %2B y^2

Answer»

x^2+y^2-z^2-2xy

Final result :

x^2 - 2xy + y^2- z^2

Step by step solution :

Step1:

Final result :

x^2 - 2xy + y^2 - z^2



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