Step-by-step explanation:
try the option shown in the attachment.
Finally,
[tex]A(-2-\sqrt{3};0);[/tex]
[tex]B(-1-\sqrt{7};3-2\sqrt{7});[/tex]
[tex]C(-2+\sqrt{3};0);[/tex]
[tex]D(-1+\sqrt{7};3+2\sqrt{7});[/tex]
[tex]E(0;5);[/tex]
[tex]F(-\frac{5}{2};0);[/tex]
[tex]G(-2;-5).[/tex]
in order to calculate the points E & F it is needed to solve the equations y=2*0+5 and 2x+5=0;
in order to calculate the vertex G it is needed to find x-coordinate:
x=(-4)/(2*1)=-2 and to substitute x=-2 into y=x²+4x-1 (y=-5).
