Is there a better way to evaluate the flux of a sphere not centered at the origin?

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I am supposed to evaluate the flux with the vector field:

$F=x^{2}i+y^{2}j+z^{2}k$, outward across the boundary of the given solid region

the ball: $(x-2)^2 + (y)^2 +(z-3)^2 \le 3^2$

The reason i'm asking is because this is how the evaluated the flux in my book:

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However I am unfamiliar with this method.

How could I approach this differently with translation?

I'm was thinking that I could translate $u =x-2$ and likewise for the other variables y,z.

Then translate this into spherical coordinates. Is the thinking somewhat correct?