а) (х-2)(х+2,6)5х2-3х-26 = (х-2)(5х+13)
б) 5(х-2)(х-2,6)5(х-2)(х-2,6) = 5(х-2)(5х+13)
в) 5(х+2)(х-2,6)5(х+2)(х-2,6) = 5(5х+13)(х-2,6)
г) (х+2)(х-2,6)5х2-3х-26 = (х+2)(5х-13)
а) (х-2)(х+2,6)
5х2-3х-26 = (х-2)(5х+13)
б) 5(х-2)(х-2,6)
5(х-2)(х-2,6) = 5(х-2)(5х+13)
в) 5(х+2)(х-2,6)
5(х+2)(х-2,6) = 5(5х+13)(х-2,6)
г) (х+2)(х-2,6)
5х2-3х-26 = (х+2)(5х-13)