1)x2+3x-2x-6=24
x2+x-6=24
x2+x-30=0
a = 1 b=1 c=-30
D = 1-4*1*(-30)=1+120=121
\/d=11
x1= -1+11/1=10
x2= -1-11/1=-12
3)x2-x-3x-6=-10
x2-4x+4=0
x+x=4
x*x=4
x1=2
x2=2
теорема виета
