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1. I have the question x^2-3x+4=0 and it says to solve using the quadratic formula. I got 3(plus or minus) (root)-7 all over 2. Sorry its written so poorly haha. Do I leave it in surd form for my answer as I cannot root a negative number or have I made an error? Thanks

I think the answer must be written in surd form
2. (Original post by JackLeggett)
I have the question x^2-3x+4=0 and it says to solve using the quadratic formula. I got 3(plus or minus) (root)-7 all over 2. Sorry its written so poorly haha. Do I leave it in surd form for my answer as I cannot root a negative number or have I made an error? Thanks
Is this C1 or FP1?

As written, you have not made an error.

Unless it's supposed to be x^2 - 3x - 4 = 0 or something.
3. (Original post by JackLeggett)
I have the question x^2-3x+4=0 and it says to solve using the quadratic formula. I got 3(plus or minus) (root)-7 all over 2. Sorry its written so poorly haha. Do I leave it in surd form for my answer as I cannot root a negative number or have I made an error? Thanks
There are no real solutions to that equation.
4. It can't be solved at this stage.
5. (Original post by SeanFM)
Is this C1 or FP1?

As written, you have not made an error.

Unless it's supposed to be x^2 - 3x - 4 = 0 or something.

I am not too sure this was given as homework for my a level taster day and it says to solve it using the quadratic formula
6. (Original post by JackLeggett)
I have the question x^2-3x+4=0 and it says to solve using the quadratic formula. I got 3(plus or minus) (root)-7 all over 2. Sorry its written so poorly haha. Do I leave it in surd form for my answer as I cannot root a negative number or have I made an error? Thanks
You should get 3 (plus or minus) root -3 all over 2. Yes you do leave this as a surd because the surd is the exact number, unless the question specifies how many significant figures you leave it to
7. (Original post by JackLeggett)
I have the question x^2-3x+4=0 and it says to solve using the quadratic formula. I got 3(plus or minus) (root)-7 all over 2. Sorry its written so poorly haha. Do I leave it in surd form for my answer as I cannot root a negative number or have I made an error? Thanks
Hmm... Assuming GCSE, that's very unusual, because you do indeed have a negative root, which means that there are no real solutions...

I think they probably just want you to say that there are "no real solutions", unless this is A-level Further Maths and you have met complex numbers...
8. (Original post by JackLeggett)
I am not too sure this was given as homework for my a level taster day and it says to solve it using the quadratic formula
If it's FP1 then use ,

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