Question

simplify (3x-4y) ³-(3x+4y) ³​

Answer 1

Answer:

$(27 {x}^{3} - 3 \times 9 {x}^{2} \times 4y + 3 \times 3x \times 16 {y}^{2} - 64 {y}^{3} ) - (27 {x}^{3} + 3 \times 9 {x}^{2} \times 4y + 3 \times 3x \times 16 {y}^{2} + 64 {y}^{3} ) = 2( - 108 {x}^{2} y - 64 {y}^{3} ) = - 216 {x}^{2} y - 128 {y}^{3}$