Question

f(x,y)=e^xy + x^2y^4
find second partial derivative of both x and y

Answer 1

i found the first partial derivative of x as ye^xy + 2y^4x
i found the first partial derivative of y as xe^xy +4x^2y^3

Answer 2

for the second partial derivative of x i got y^2e^x + 2y^4
wrong
for the second partial derivative of y i got x^2e^xy +8y^3x
wrong