help pls and hurry my test is tomorrow quadratic

help pls and hurry my test is tomorrow,

im having issues with solving quadratic equations (paralobas)

the problem is x^-2x-8=0 i have tried everything i can not solve this

if u can pls map this out for me showing me how to get x, and y and the corresponding y-values to obtain the points for the paraloba...

i just need this one problem totaly worked out and i will get it,

i just simply can solve it, i keep getting 4 but book says answer is 4 and -2, thanks in advance.....

p.s. pls give steps and the rule si mut follow when solving for a paraloba pls,

thanks again and in advance

im not h aving issues graphing im having issues

im not h aving issues graphing im having issues with

getting the y values the one where u do the chart, book says its 4 and -2 but when i plug in value 4 in place of x and do equaition i get 0 as answer and not -2, im trying to get the pts for y values to plot on the parabola

thanks in advance...