GCSE/ALevel Maths Challenge 1

Get a piece of A4 paper to practise your mathematics in quadratics and cubic equations. Only 7 minutes to solve them. There will be 2 to 3 answers per question. (Note if your at GCSE level don't worry if you cant solve the cubic equation. I doubt that will be in any paper.)
Quiz by thedandan123
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Last updated: September 27, 2015
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First submittedSeptember 27, 2015
Times taken382
Average score42.9%
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7:00
Please tell me in the comments if I did anything incorrect. Afterall this maths is at quite a high level.
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Hint
Answer
x squared + 3x + 2 = 0
X = -2
 
X = -1
3x squared + 2x -1 = 0
X = 1/3
 
X = -1
Hint
Answer
6x cubed - 19x squared + 11x + 6 = 0
X = 2
 
X = -3/2
 
X = 1/3
+1
Level 65
Sep 27, 2015
Couple of things:

1) I have no idea what you're talking about, but I got an 100% just by guessing. 2) You shouldn't have to type in 'x =' for each answer, just the solution should be accepted. 3) So, to further explain 1, I typed x= then counted 1,2,3... etc. Not sure how you could change that, though. 4) On this website, spaces, capitalization, punctuation, etc. doesn't count! (so just typing in 'x2' for the 1st answer will give credit) JetPunk doesn't count negative signs, equals signs, or slash marks to represent fractions. 6) That makes "x13" acceptable for "X = 1/3". 7) In the 'Instructions #1', it should read (Note if you're at GSCE...).

Okay, so maybe that wasn't just a couple of things, but, after the needed revising, it'll make an epic quiz! :)

+1
Level 14
Apr 22, 2016
Ok. Until the website is upgraded I cant really make the majority of these changes. If you didnt know the answer that is fine. However I made this quiz for GCSE students to revise this topic.