Can some one help me? I’m stuck (#8)

(-1/2, 3/2)

Step-by-step explanation:

The circumcenter of a right triangle is the midpoint of the hypotenuse.

Therefore it is (-2+1)/2, (4+-1)/2

(-1/2, 3/2)

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!