Originally Posted by

**mneox** I am curious as to how you would write the derivative when using the chain rule for longer polynomials?

we learned how to do examples such as y = (5x + 1)^4

but I am stumped as to how you would write it when the example is per se,

y = 2(2x + 4(3x + 2)^5 - 5x^2)^4 - 6x

so for this example, i would get

y' = 8(2x + 4(3x + 2)^5 - 5x^2)^3 x (the derivative of the stuff inside the bracket "u") - 6

What i'm wondering is, for the "u" part, how do i write it?

would I go 2 + 20(3x+2)^4 x 3 - 10x or would i write it such as 2(20(3x+2)^4)(3)(10x) and multiply them all together like that

thanks for your help