1.

2(x^2 + y^2)^2 = 25 ( x^2 -y^2 )

Answer»

Step-by-step EXPLANATION:

(2x  {}^{2}  - 2y  {}^{2} )  {?}^{2} = 25(x  {}^{2}  -  - y {}^{2} ) \\

is not EQUAL



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