№1
1) (х-5)(х-8)
х1=5 х2=8
2) (2х+1)(3х-1)
х1=-0,5 х2=
№2
1) (а-1)(а-17)
2) -(х-3)(х+7)
3) 5(6у+1)(2у-1)
4) 5(3х-5)^2
№3
1) = = x-1
2) = =
4) = =
5) = =
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Answers & Comments
№1
1) (х-5)(х-8)
х1=5 х2=8
2) (2х+1)(3х-1)
х1=-0,5 х2=
№2
1) (а-1)(а-17)
2) -(х-3)(х+7)
3) 5(6у+1)(2у-1)
4) 5(3х-5)^2
№3
1) = = x-1
2) = =
4) = =
5) = =