Question

X³-9y³+(x+y)³ productive

Answer 1

Explanation:

${x}^{3} - 9 {y}^{3} + {x}^{3} + {y}^{3} + 3x {}^{2} y + 3x {y}^{2 } \\ - 8 {y}^{3} + 3 {x}^{2} y + 3x {y}^{2} \\ after \: take \: y \: common \\ - 8 {y}^{2} + 3 {x}^{2} + 3xy \\ 3 {x}^{2} + 3xy - 8 {y}^{2}$