help with this problem PLEASE

[mmm]

Electric charge is distributed over the disk x² + y² ≤ 4 so that the charge density at (x, y) is ρ(x, y) = 3x + 3y + 3x² + 3y² (measured in coulombs per square meter). Find the total charge on the disk.

 

[Deleted member 4993]

Electric charge is distributed over the disk x² + y² ≤ 4 so that the charge density at (x, y) is ρ(x, y) = 3x + 3y + 3x² + 3y² (measured in coulombs per square meter). Find the total charge on the disk.​

Hint: \(\displaystyle \displaystyle{total \ charge \ = \ \int \int \rho dA}\) ... convert your problem to polar co-ordinate system.

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