8*x^2-11*x+3=0
D=(-11)^2-4*8*3=121-4*8*3=121-32*3=121-96=25;
x_1=(25^0.5-(-11))/(2*8)=(5-(-11))/(2*8)=(5+11)/(2*8)=16/(2*8)=16/16=1
x_2=(-25^0.5-(-11))/(2*8)=(-5-(-11))/(2*8)=(-5+11)/(2*8)=6/(2*8)=6/16=3/8~~0.375
x^2+8*x-6=0
D=8^2-4*(-6)=64-4*(-6)=64-(-4*6)=64-(-24)=64+24=88;
x_1=(88^0.5-8)/2=88^0.5/2-8/2=88^0.5/2-4~~0.69
x_2=(-88^0.5-8)/2=-88^0.5/2-8/2=-88^0.5/2-4~~-8.69
16*x^2-32*x=0
D=(-32)^2-4*16*0=1024-4*16*0=1024-64*0=1024;
x_1=(1024^0.5-(-32))/(2*16)=(32-(-32))/(2*16)=(32+32)/(2*16)=64/(2*16)=64/32=2
x_2=(-1024^0.5-(-32))/(2*16)=(-32-(-32))/(2*16)=(-32+32)/(2*16)=0/(2*16)=0/32=0
