mzpolinozkabk1 1)D=(-6^2)-4*8=36-32=4
x1=6+2/2=4
x2=6-2/2=2
2)D=3^2-4*(-40)=9+160=169
x1=-3+13/2=5
x2=-3-13/2=-8
3)D=3^2-4*5*(-2)=9+40=49
x1=-3+7/10=0,4
x2=-3-7/10=-1
4)D=(-3^2)-4*4*(-22)=9+352=361
x1=3+19/8=11/4
x2=3-19/8=-2
5)D=p^2-4*x*q
x1=-p+√D/2a
x2=-p-√D/2a
6)D=b^2-4*a*c
x1=-b-√D/2a
x2=-b+√D/2a