Question

Упростите выражение:

(х+3)(у-2)+2х-3у+1=

(х-2)(у+5)-5х+2у=

Answer 1

(x+3)*(y-2)+2x-3y+1=xy-2x+3y-6+2x-3y+1+xy-5
(x-2)*(y+5)-5x+2y=xy+5x-2y-10-5x+2y=xy-10