Question

Solve this question please​

Answer 1

Answer:

hope u find my ans helpful!

Answer 2

$( - {x}^{2} ) + 2xy + ( - 4 {x}^{2} ) + 3xy \\ + 5 {x}^{2} - 8xy \\ = ( - {x}^{2} ) - 4 {x}^{2} + 5 {x}^{2} + 2xy \\ + 3xy - 8xy \\ = - 5 {x}^{2} + 5 {x}^{2} + 2xy + 3xy \\ - 8xy \\ = 5xy - 8xy = 3xy$

Hope it helps ☺️