Question

Simplyfy( x-y)3-(x+y)3​

Answer 1

Answer:

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

here all the other terms are cancelled so we get answer in a single term

I hope it is helpful..............