Question

What is the derivative d/dx (x^2 + 7x + 1)^(−3/2) = ?
I have done used just about all of my tries, put it on Wolfram and everything, please help

Answer 1

(-3/2)(x^2+7x+1)^(-2)(2x+7)
and clean it up. Chain rule
Derivative of the outside, leave the inside alone, - 1 from exponent. times
Derivative of the inside
can you clean it up from here?

Answer 2

fix exponent should be (-5/2) not 2

Answer 3

so:
(-3/2)(2x+7)/(x^2+7x+1)^(5/2)

Answer 4

does the two do on the bottom with x^2 + 7x + 1

Answer 5

i'll try to draw