(2х+3у)(5х-1)-(10х²+15ху)=
=10х^2+15ху-2х-3у-10х²-15ху=-2х-3у
(2x+3y)×(5x-1)-5x×(2x+3y)
(2x+3y)×(5x-1-5x)
(2x+3y)×(-1)
-1(2x+3y)
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Verified answer
(2х+3у)(5х-1)-(10х²+15ху)=
=10х^2+15ху-2х-3у-10х²-15ху=-2х-3у
Verified answer
(2x+3y)×(5x-1)-5x×(2x+3y)
(2x+3y)×(5x-1-5x)
(2x+3y)×(-1)
-1(2x+3y)