Which of the following is a radical equation X + square root of 5 =12
X^2 =16
3 + X square root of 7 =13
7 square root of x =14

I think it's C not really sure so if wrong my bad.

Step-by-step explanation:

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!