а) 9х^2-(3х+5)(3х-5)=2х
б) х^2=5х+(х+4)(х-4)
в) (х+1)^2+2=0
г) (х-5)^2=(х-4)(х+4)
б) х^2=5х+(х+4)(х-4)
в) (х+1)^2+2=0
г) (х-5)^2=(х-4)(х+4)
More Questions From This User See All
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
2х=25
х=12,5
2) х^2=5х+х^2-16
5х=16
х=3,2
3) х^2+2х+1+2=0
х^2+2х+3=0
D= 4-4*1*3=-9<0
Корней нет
4) х^2-10х+25=х^2-16
-10х=-16-25
-10х=-41
х=4,1