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)
