1)2x²-16x=0
a=2 b=-16 c=0
x1+x2=-b/a x1+x2=8
x1×x2=c/a x1×x2=0 x1=8 x2=0
2)5x²-125=0
a=5 b=0 c=-125
x1+x2=0
x1×x2=-125/5
x1×x2=-25 x1=-5 x2=5
3)x²-4x-32=0
a=1 b=-4 c=-32
x1+x2=4
x1×x2=-32 x1=-4 x2=8
4)x²+12x+32=0
a=1 b=12 c=32
x1+x2=-12
x1×x2=32 x1=-8 x2=-4
5)x²+11x-26=0
a=1 b=11 c=-26
x1+x2=-11
x1×x2=-26 x1=-13 x2=2
6)5x²-40x=0
a=5 b=-40 c=0
x1+x2=40/5 x1+x2=8
x1×x2=0 x1=0 x2=8
7)x²-11x+24=0
a=1 b=-11 c=24
x1+x2=11
x1×x2=24 x1=3 x2=8
8)4x²-12x-40=0
a=4 b=-12 c=-40
x1+x2=12/4 x1+x2=3
x1×x2=-40/4 x1×x2=-10 x1=-2 x2=5
9)2x²+13x-24=0
a=2 b=13 c=-24
x1+x2=-13/2
x1×x2=-24/2
x1×x2=-12 x1=-8 x2=3/2