Find the slope of the tangent line to the curve y=9x^{\frac{5}{2}}-7x^{\frac{3}{2}}atx = 4

What is the derivative off(x)= 6x^{-2}+8x^3+ 11x+10+e^x

Letf(x)=-9x^{-4}findf'(2x)

Find an equation for the line tangent to given curve y= \frac{-10x^2-3}{4x+1}at. x = 0