Question

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

Answer 1

Step-by-step explanation:

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