No, x = -7 makes it so you have 3/(-7+7) = 3/0, which is undefined. Not only that, but I dont think the whole problem is showing, because this equation doesnt equal anything, so you cant really solve for x.

Demoncurtain: thank you, finally the answer makes sense. I also like the way the teacher has responded with a small picture of the USS Enterprise, thereby acknowledging the students clever cicrumvention of the question as per the Kobiyashi Maru test.

However the question in Demoncurtains example is poorly worded, the answers its looking for are presumably... approx square root of 3 and 5m respectively. but... An object is only at rest when it stops completely isn`t it? If its still accelerating how can it be at rest? The spring hasn`e been defined as perfect either, so how is the student to account for the efficiency of its return? Finally, and most damningly - what is the elasticity coefficient for a very small elephant?

Hitaki318, hahahahaaha that is VERY easy. If you are using a calculator to solve that you should go back to kindergarten and start learning math again.

Yeah, SalokinX, I never said I had the answer. Never said it was easy: no claim at all hinting I knew the answer. Additionally, I don`t see you with the answer either. Maybe YOU should go back to kindergarten to learn some simple sentences, eh?

- He fails to realize his teacher is much more clever. Fails test.
You`ve made the mistake of reading the minus sign as an equals sign, since that`s the only way you`d have enough of a question to attempt an answer.

But if that were the question, then yes, x = -7 would be the right answer.

No, x = -7 makes it so you have 3/(-7+7) = 3/0, which is undefined. Not only that, but I dont think the whole problem is showing, because this equation doesnt equal anything, so you cant really solve for x.

:D

I`m not gonna lie, though - I wish I had done something like this in HS

obviously, that is a mean, mean teacher.

I think he meant it to block the area below the question where he could work out the problem.

im such a nerd...

simplify.

im such a nerd...

Reply- Don`t worry bud, you`re not a nerd.

2(x+7)/(x^2+8x+7).

Also, that problem is easy.

you deserve that -3 for such a question

but...

An object is only at rest when it stops completely isn`t it? If its still accelerating how can it be at rest?

The spring hasn`e been defined as perfect either, so how is the student to account for the efficiency of its return?

Finally, and most damningly - what is the elasticity coefficient for a very small elephant?

"He`s stupid."

"I can do this problem, simple."

= None of them have the answer.

And now someone will post the answer after either solving it or putting it into a calculator they found on Google.

Magical, isn`t it?!?

why?

That teacher seems great!lol

Teacher: 1!