What is the magnitude of the net charge enclosed by surface?

[YeetForTheOneTime]

Homework Statement

A closed surface with dimensions a = b = 0.302m and c=0.604m is located as in the figure.
The electric field throughout the region is nonuniform and defined by E⃗ = (α+βx2)ˆı where x is in meters,α=4N/C, andβ=4N/(C·m2).?
What is the magnitude of the net charge enclosed by the surface?
Answer in units of C.

Homework Equations

The Attempt at a Solution

I tried to use E= (4+4x^2) and distribute the Epsilon naught value but obviously that is completely wrong. I am struggling and would appreciate any help that can be offered!

 

[ehild]

Homework Statement

A closed surface with dimensions a = b = 0.302m and c=0.604m is located as in the figure.
The electric field throughout the region is nonuniform and defined by E⃗ = (α+βx2)ˆı where x is in meters,α=4N/C, andβ=4N/(C·m2).?
What is the magnitude of the net charge enclosed by the surface?
Answer in units of C.

Homework Equations

The Attempt at a Solution

I tried to use E= (4+4x^2) and distribute the Epsilon naught value but obviously that is completely wrong. I am struggling and would appreciate any help that can be offered!

What is the direction of the electric field?
Do you know Gauss' Law?