Question

subtract 7x3-6x2y+9xy2-2y3 from 3x2y-2x3+y3-5xy3​

Answer 1

Step-by-step explanation:

$= > 3 {x}^{2} y - 2 {x}^{3} + {y}^{3} - 5x {y}^{3} - (7 {x}^{3} - 6 {x}^{2} y + 9x {y}^{2} - 2 {y}^{3} )$

$= > 3 {x}^{2} y - 2 {x}^{3} + {y}^{3} - 5x {y}^{3} - 7 {x}^{3} - 6 {x}^{2} y + 9x {y}^{2} - 2 {y}^{3}$

$= > 9 {x}^{2} - 9 {x}^{3} + 3 {y}^{3} - 5x {y}^{3} - 9x {y}^{2}$