(3х-2)(х+4)-3(х+5)(х-1)=0

Question

(3х-2)(х+4)-3(х+5)(х-1)=0

Answer 1

3х²+12х-2х-8-3(х²-х+5х-5)=0
3х²+12х-2х-8-3х²+3х-15х+15=0
-2х=-7
х=-7/(-2)
х=3,5