1) 10x²-14x=2x²-5
8x²-14x+5=0
D=36
x1=0,5;
x2=1,25
3)x²-10x+25=3x²-x+14
2x²+9x-11=0
D=169
x1=-5,5
x2=1
1) 10x²-14x=2x²-5
8x²-14x+5=0
D=36
x1=0,5;
x2=1,25
3)x²-10x+25=3x²-x+14
2x²+9x-11=0
D=169
x1=-5,5
x2=1