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we allowed to do that, ya? :d

my head hurts trying to follow you lol so we expand?

|dw:1438993951176:dw|

yes I see you expanding to dind the derivatives. o.o math is not my forte lol

|dw:1438994231877:dw|we have another set of terms to get.
so we'll have to distribute this 3.

|dw:1438994268041:dw|

with 9x^3?

|dw:1438994442968:dw|

-2x^8??? ( when you say twice you mean add or multiply im getting very confused)

\(\large\rm (-2x^4)'=?\)

Remember your power rule? :)

sorta but not confidently

so it be 2x^3? from 2x^4?

Nooo :O Where did your 4 go? it didn't come down silly!

oh the math code didn't format correctly :( ugh

This was the example:|dw:1438995007902:dw|

The 7 comes down, and then the power decreases to a 6.

-8x^3?
my reasoning:
-2x^4= -2. 4x^3 = -8x3

-8x^3
-8x^3=-8.3x^2=-24x^2?

\[\checkmark\]

So yay good, you've found your coefficient! :)
-24

ok so my answer to my question is -24x^2?

The question said `Find the coefficient`.
The coefficient is `only` the number in front.

oh coolz hehe can you help me in one more question?

lol ok ty