Question

subtract x2-2xy+5y2-4 from 4xy-5x2-y2+6​

Answer 1

Answer:

(4xy-5x2-y2+6)-(x2-2xy+5y2-4)

4xy-5x2-y2+6-x2+2xy-5y2+4

4xy+2xy-5x2-x2-y2-5y2+6+4

answer = 6xy-6x2-6y2+10

Answer 2

-6xy-4x2+4y2+2
Is your answer