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1. The equation:

y = 3x^2 + (k-2)x + 3

Has two real roots.

Work out the values of k.

I'd be grateful if anyone could help me with this
2. (Original post by Federerr)
The equation:

y = 3x^2 + (k-2)x + 3

Has two real roots.

Work out the values of k.

I'd be grateful if anyone could help me with this
Use
where
a=3
b=k-2
c=3

the question tells us the equation has 2 real roots
3. (Original post by Federerr)
The equation:

y = 3x^2 + (k-2)x + 3

Has two real roots.

Work out the values of k.

I'd be grateful if anyone could help me with this
use the discriminant and 2 real roots means that the equation must be greater than 0 solve from there
4. (Original post by hamza772000)
use the discriminant and 2 real roots means that the equation must be greater than 0 solve from there
Well I know that haha.

I got an answer just wanna see if I got it right

Do it hamza lemme know what yah get init.
5. (Original post by Federerr)
Well I know that haha.

I got an answer just wanna see if I got it right

Do it hamza lemme know what yah get init.
lemme have a go then
6. (Original post by Federerr)
Well I know that haha.

I got an answer just wanna see if I got it right

Do it hamza lemme know what yah get init.
I got K=8 and K=-4
7. (Original post by Federerr)
Well I know that haha.

I got an answer just wanna see if I got it right

Do it hamza lemme know what yah get init.
k>8
k<-4
8. (Original post by will'o'wisp)
k>8
k<-4
That's what I got
9. (Original post by hamza772000)
I got K=8 and K=-4
but it's an inequality you're solving.... you even said set the discriminant greater than 0...
10. (Original post by Federerr)
That's what I got
Awesome i sometimes do dis and ask ppl to do the question for me and check if i got the right answer xD
11. (Original post by Federerr)
Well I know that haha.

I got an answer just wanna see if I got it right

Do it hamza lemme know what yah get init.

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12. (Original post by will'o'wisp)
Awesome i sometimes do dis and ask ppl to do the question for me and check if i got the right answer xD
Yehh! It's so frustrating when you can't find the solutions anywhere haha.
13. (Original post by will'o'wisp)
but it's an inequality you're solving.... you even said set the discriminant greater than 0...
Yeah, I realised, look at the attachment below
14. Nice handwriting
15. That's calm.

> 8
< -4
16. (Original post by Federerr)
Nice handwriting
It was in a rush, r u taking the piss? lol :P
17. (Original post by hamza772000)
It was in a rush, r u taking the piss? lol :P
Nah it's actually naaaaas
18. (Original post by Federerr)
Nah it's actually naaaaas
well, here it's nasty but ok :P
19. (Original post by hamza772000)
well, here it's nasty but ok :P
I got handwriting like a yr 2 kid
20. (Original post by Tasnia'x)
That's calm.

> 8
< -4
woah sorry.

we ain't all as clever as u.

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