Calculus help....Please????

Question

I have a few problems that I am stumped on and need some help on how to solve them

1) x² + 1/sqrt x x=1

2) slope of a tangent line function f(x)= x+1/ x² +4 x=0

3) compute the derivative of g(x) = x³ (2+sqrt x) at x=4

Thanks

Answer 1

You might want to recheck some of your questions to make sure you get it right.
1. This should be 2.
2. Undetermined since the function is not continuous at x=0.
3. dg/dx= x^3 ( 1/2 * sqrt(x) )+ (2+sqrt(x)) 3x^2
for x=4, 64+192= 256