1.

Add (x²-y²) , (x²-y²) and (x²-y²)Solve this​

Answer»

Step-by-step EXPLANATION:

{x}^{2}  -  {y}^{2}  +  {x}^{2}  -  {y}^{2}  +  {x}^{2}  -  {y}^{2}  \\ 3 {x}^{2}  - 3 {y}^{2}  \\ 3(  {x}^{2}  -  {y}^{2} )



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