Question

Factorise: 8x³-125y³+180xy+216

Answer 1

$(2x) {}^{3} + ( - 5y) {}^{3} + 6 {}^{3} \\ - 3(2x)( - 5y)(6) \\ = \\ (2x - 5y + 6) \\ (4x {}^{2} + 25y {}^{2} + 36 \\ + 10xy + 30y - 12x)$