Please check my answer!

Which of the following equations represents the greatest value of x?



Equation 1 – x^2 = 17

Equation 2 – x^2 = 26

Equation 3 – x^3 = 64

Equation 4 – x^3 = 27

AEquation 1

BEquation 2

CEquation 3

DEquation 4

I think the x values are:

1- x= 4.12 or 4.12

2- x= 2

3- x= 4

4- x=3


I think it's A, but I need someone to look over it.