Second derivative test for:
y= e^x (x^2 -7x +13)

Hello 
y= e^x (x^2 -7x +13)
y' = (e^x)' (x^2 -7x +13)+e^x (x^2 -7x +13)'
y' = e^x(x^2 -7x +13)+e^x (2x-7)
y" = e^x(x^2 -7x +13)+e^x (2)
y"=e^x(x^2 -7x +15)