1.Find the derivative of the function.

y=8x7/4x+5

y prime=

2.Evaluate the derivatives of the given function for the given value of x. Check your results using the derivative evaluation feature of a graphing calculator.

y=(2x²-x+1)(1-2x²-x²) x=5

yprime(5)=

3.Evaluate the derivative of the given function for the given value of x.

y=2x-3/4x+9 x=2

dy/dx=

This are not working for me with the math lab helper. I don't understand how they are getting they functions.