Number 17 9216 because you take 96*4
I'm taking the liberty of editing your function <span>v = e5xey: It should be
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<span>v = e^5x^ey, with " ^ " indicating exponentiation.
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Did you mean e^(5x) or (e^5)x? I'll assume it's e^(5x).
The partial of v = e^(5x)e^y with respect to x is e^(5x)(5)*e^y, or 25x*e^y.
The partial of v = e^(5x)e^y with respect to y is e^(5x)e^y.
The answer to this is 720000