Question

(4xy-8x^2-y^2)-(3xy+7x^2+8y^2). Subtract the given . Answer correctly . ​

Answer 1

Answer:

$= (4xy - 8 {x}^{2} - {y}^{2} ) - (3xy + 7 {x}^{2} + 8 {y}^{2} ) \\ = 4xy - 8 {x}^{2} - {y}^{2} - 3xy - 7 {x}^{2} - 8 {y}^{2} \\ = xy - 15 {x}^{2} - 9 {y}^{2} \\ = - (15 {x}^{2} - xy + 9 {y}^{2} )$