# Math question for uni.

As my exams are close, I'm revising and came across the following example and couldnt find a way to solve it.

The answer is given, which is -9/2

As my exams are close, I'm revising and came across the following example and couldnt find a way to solve it.

The answer is given, which is -9/2

## Comments

Hey there Cpl., I'm covering the same thing right now in maths, and will do my best to help:

Firstly, you can substitute x=-x, giving you:

From there, rationalise the expression to:

Then, multiply and divide by x:

Then divide again:

After this, use the knowledge that the limit of the quotient is the quotient of the limits, if that makes sense, to do the following:

Again, use the fact that the limit of the difference is the difference of the limits:

Limit of a constant is equal to the constant:

Apply the constant multiple rule:

Cheeky rearrange:

Lim(Constant) = Constant:

Constant/Large number = 0:

Another cheeky rearrange:

Again, Lim(constant) = constant:

Move the limit

underthe power:Lim(Diff)=Sum(Limits):

Lim(Constant)=Constant:

Apply constant multiple rule again:

Third cheeky rearrange:

Again, Lim(Constant)=Constant:

Constant/Large number = 0:

Apply constant multiple rule:

Cheeky rearrange:

Lim(Constant)=Constant:

Constant/Big number = 0:

So, therefore:

=-9/2 or -4.5

Hope this helps, took me a while to type it out so may be a bit messy and confusing. Good luck in your exams :)

Sounds delightful! thank you!

Vietnam flashbacksLiterally, Maths was slaying me back in high school and this is PTSD-triggering af

Is this a thing now? 29th homework assistance?

Considering we have a lot of school-age members, I don't think why not.

Also because I suck at Maths too lmao

If we only had homework assistance when I was in Highschool. I've might not have been kicked out lol

I've proofread and edited squad members homework assignments on more than one occasion. If it helps them make drills a good leader/squadmate should help out!