Brandon | AP Calculus Tutor
Region: US
Monday 07 September 2026 23:00:27 GMT
100771
4979
101
240
Music
Download
Comments
lemonsarekindasour✝️🤝🏳️🌈⚛️ :
The simplification takes like 3 seconds
2026-09-08 01:29:07
233
Lt Gen X :
This is not a limit problem, it is a derivative? A derivative is a limit though.
2026-09-16 12:00:19
2
rishi :
just use lhoptials rule it is 6
2026-09-08 02:51:33
120
T :
cancel -9 and 9, pull out an h, cancel h from bottom and top, this gives you 6+h, 6+0 =6…. i dont really know if there is a hard way tbh
2026-09-15 05:34:10
0
shreyan :
it takes like 10 seconds to solve once u foil and divide by h and ultimately plug in zero
2026-09-07 23:58:04
661
Math4Fun :
it overlooks the importance of the limit definition of a derivative
2026-09-15 13:38:52
0
Armor :
You need a Fourier transform because canceling 9 and -9 is too hard
2026-09-08 07:28:34
59
Aiden O :
or you just take 2 seconds to get 6+h and sub in h... way simpler
2026-09-09 16:29:41
25
samir :
uh you can just do (9+6h+h²-9)/h (6h+h²)/h h(6+h)/h 6+h 6 because h is 0
2026-09-13 18:28:02
12
sewer :
"it's not a limit; it's a derivative"...
2026-09-13 17:46:16
35
larpkana :
cant we just: (9+6h+h²-9)/h = (6h+h²)/h = (h(6+h))/h = lim h>0 6+h = 6+0 = 6? Genuine question cause I'm a first in mechanical engineering
2026-09-12 15:48:39
1
Enormous Deer :
Just solve the damn limit. It’s not complicated, and recognizing that it’s the limit definition of the derivative of x^2 takes longer than just solving the limit.
2026-09-08 02:27:00
106
Adam Ostrowski :
bro. Ur overcomplicating this.
2026-09-13 18:44:40
10
FrogMike :
Wouldn't it be simpler to treat the top as a diff of squares to get (3+h+3)(3+h-3)/h, then (6+h)(h)/h, cancel the h's, then 6+0?
2026-09-09 22:34:53
3
user2210594660127 :
This is genuinely a terrible example to use. You say “if this wasn’t equal to 9, you’d have to do it the hard way.” That should tell you that the initial way is very straightforward, so much so that you literally wrote out the expansion and were one step away from the answer. Also I don’t agree with teaching to the exam, teach the material and if they understand they’ll be able to easily solve the question. This weird motion of checking if it fits the assigned form is literally the problem with mathematics today. Just rote memorization of types of problems instead of applying straightforward tools that are intuitive. Lastly, if you replaced 9 with any other number, that resulting problem could still easily be on the AP calc exam, either expecting l’hopitals or just expansion. So your method might make them waste extra time.
2026-09-08 21:27:37
0
sadmagicainjt :
Figuring out that logic is a lot slower than just solving the limit. An ap calc student should be able to do so within 10 seconds. (Or else idk why theyres taking an ap class
2026-09-08 01:18:38
0
Cj Greene :
did l'hospitals rule in my head in like 30 seconds also 6
2026-09-08 20:18:17
7
Brian :
Using the derivative to solve such a simple limit is kind of silly when this problem is a really meant to get you in the habit of solving limits that look like the limit definition of the derivative
2026-09-08 07:13:53
9
rawmilkfans :
6
2026-09-08 01:44:35
6
atticus :
so you have h^2+6h factor out h and get h(h+6/h the h’s cancel you get 6+h and 6+0 is just 6 why do all this
2026-09-14 05:57:33
1
Quiyote :
How to overcomplicate
2026-09-12 09:38:00
1
spherulitic :
this is trivial. forget the limit. h is infinitesimal. simplify, then take the standard part of the expression. boom, 6, it takes 15 seconds to calculate.
2026-09-09 01:25:11
2
Astolfo_Kys :
You have to use hopital for this one so that the -9 cancels out
2026-09-13 19:11:05
1
🐝 Rowan 🐝 :
Plug in .00001 and round?
2026-09-09 00:31:37
1
To see more videos from user @stemtutorclub, please go to the Tikwm
homepage.
