( х-2)(5х+30)-(х-2)(3х-5)=0
(х-2)(5х+3)-(3х-5))=0
(х-2)(5х+3-3х+5)=0
(х-2)(2х+8)=0
х-2=0 2х+8=0
х1=2 х2=-4
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( х-2)(5х+30)-(х-2)(3х-5)=0
(х-2)(5х+3)-(3х-5))=0
(х-2)(5х+3-3х+5)=0
(х-2)(2х+8)=0
х-2=0 2х+8=0
х1=2 х2=-4