[Puzzle / Quiz] Portal 2 giveaway!

so does 4th :/ WolframAlpha agrees with me, but the quiz says "wrong"

Edit : AH ! You need (number)[SPACE]/SPACEx
(like the hint said :3 silly me)

I ran into the error on 3 as well but figured it out, also ran into the formatting error on 4s answer.

EDIT: Not going to do 5 stages right now when I ran into a couple format errors on the first one. GL all. :)

Please do.

If I made a typo please do say without giving away any answers :)

4^(0.5) + 4^(-0.5) - 0.25^(0.5) - correct form

4^(-0.2) should be 4^(-0.5)

It's a single integer...

Nicely done! 4 parts left! :D

Answer is: "x = xx.x"
this made me type a wrong answer :p

Edited with information about this :)
Good luck!

I should be revising for my Analysis exam, not doing high-school math -_-

No xD
I finished this year, but this is all math I learned from that year of high school :P

im guessing there is "+" missing between 3x and 4y in first

Like I tried to say in the format thing.. Use comma and space..

see his third "IMPORTANT"

x = 42.0 (okay bad example, you'd have to type "x=42" then. But 42 is just... 42.)

x = 47.9 :D example

(12 / 3) - (6 / (x - 2)) = 9 / x and the picture states 12/x-6/(x-2)=9/x . Which one to go for? (Test 2 exercise 2)

see previous post : use the pic equation.

he thought q5 was an inequality.

there are, just no integers/finite decimal numbers. So no typable ones :(

yes, but he mentions it in OP

the format should be both the roots? or +/- y, where Y is the solution?

Same :/

Neither can Wolfram :p. And OP (Original Poster, ie the author of the quiz) is not responding to my PMs

That one seems to have irrational answers. Also it's like three cases to check.

I suck at this, I looked at it wrong and therefor the answer is wrong, look at OP for the solution.

says the guy named "Glitchy" :p

q4 : nope, negative delta, only real numbers. q5 : middle answer is 3, not 2.9 (OP's mistake. Again -_-)

Question 4: Try solving it and check OP again

Question 5: Try looking at OP again...

Sorry for the confusion =/