[Puzzle / Quiz] Portal 2 giveaway!

I really cannot do any puzzles that involve math or numbers.

Where did all the other comments disappear?

Mildan can you answer for my little question from previous thread? (if its too big help, then write it, pls) "There are four digits as answer. Two below 0 and two above 0. First two are in {-1,0) and second two in {2,4} (if we count answer mistake it'll be {3,4}). Is this right? If yes... i dont know how to format it well..."

The trigonometry one.. question 2.. I think I simply don't understand the question. The way it is worded. My original guess about its interpretation gave me wrong answer..

an answer can be like: x = 4 + 3i ??
having problems on part2, 4&5

how to write number with decimal? with the dot '.', or ',' , and how many decimal digits?
tnx

I've solved x on part 2, question 1 but I don't understand how to enter it. I've tried every possible combination I could think of. Does the x = xx.x part mean we should just replace the x's with the answer?

stuck on question 4

I'm trying to use the second hint but I don't get the ascii part. I don't know what to enter where.

I also don't get the ASCII thing regarding 0, nor do I get Q2 P1. The answer is a single digit, but x = # doesn't work.
This is really pissing me off. 30 sec wait times and the most rigid accepting system...
Not to mention the numerous errors. Here's another. Q2 P2: The text equation is different than the picture equation. The text is incorrect.

why don't u redo the puzzles with 0 mistakes and post another thread here, in turn you apologize again and maybe remove p2q5?..

I'm stuck at Q3, last part. I'm not used to solve math in English, so i don't quite understand how to "add a linear function onto the first function"
How would the function look like after this transformation?

Part 2 Question 2 has a typo

Edit Yea still confused about part 2 question 5. I should have the right numbers.

You Math Wizards have confuzzled me on Q4/P1, I know I have my format right, I tried 2 of them, with parenthesis and without and still wrong!

Hey thanks for the nice puzzle gotta beat part 2 now keep em coming!

Can't solve Q5 in part 2 still... that's ridiculous, I know I have the right result but still doesn't work...

I honestly have no idea how I'm going to get a real solution on Q4 in part 2. You're saying I should use the hint here, but the hint doesn't make any sense to me.

I'm on part 5, Q3... I don't understand the question, should I literally add 0.25x + 2 to the function? Like this? |x^2 - 8x + 12 + 0.25x + 2|

how can solution to Q4 in p2 be real number when discriminant is negative

Stuck on question 4 >< And my english is so bad... I don't understand "important" or a little but confusing for me :/

P3 Q1, is c the segment AC, AB or CB? Same for a and b ?_?
edit: found it, for those in the same situation c = AB

Stuck at P2 Q4 for half an hour already, no idea how to insert the equation due to the discriminant being negative >.<

Am equally puzzled in Q3 Last puzzle. I do not comprehend what the question wants! HAHA!

already have portal 2, but still trying to solve this, for the lulz =P (the P2 it's .... i don't know why i can't get the results O.o)