1) (1;4)
(-3;-20)
2) (2;20)
(-2;4)
1) x^2+8x-5=2x^2+10x-8
x^2+2x-3=0
D=4+12=16
x1=(-2+4)/2=1
x2=(-2-4)/2=3
y1=4
y2=-20
2)3х^2+4х=х^2+4х+8
2x^2-8=0
2(x^2-4)=0
x^2=4
x1=2
x2=-2
y1=20
y2=4
1) (1;4)
(-3;-20)
2) (2;20)
(-2;4)
1) x^2+8x-5=2x^2+10x-8
x^2+2x-3=0
D=4+12=16
x1=(-2+4)/2=1
x2=(-2-4)/2=3
y1=4
y2=-20
2)3х^2+4х=х^2+4х+8
2x^2-8=0
2(x^2-4)=0
x^2=4
x1=2
x2=-2
y1=20
y2=4