2sqd= 4

4-3x-2= 0
0+2=2 whats 3 divided by 2?

damn i'm shite at maths!

I think whatever 3 divided by 2 is is the answer

You sure it's not 2(x squared)- 3x - 2 = 0??...

You sure it's not 2(x squared)- 3x - 2 = 0??...

Byron said:

2(x squared)- 3x - 2 = 0
4x-3x-2=0
x-2=0
x=2


I doubt I did that right...I was never good at algebra...give me a geometry and I will be ok. But hey it was worth a shot.

Byron said:

You're right, that's what it is.

2 and -.5?

2the9s said:

I don't think so, at least not the way I've done it.

MostBeautifulGrlNTheWorld said:

No, you're wrong, it's in the form "x=y or z"

Spookymuffin said:

x=2

Jesus christ! lol How confusings this!

to be honest I didn't hold high hopes for my math skills I tried to help my mates lil sister with her 11+ mock papers the other day (a paper 10-11 year olds ) and I didn't understand it!

I have no idea how I got a C for it at GCSE (thats the exams at bout 16 yrs)

(brackets are for those who don't know these things!)



(MATHS )


dopey nuts edit
[This message was edited Sun Jan 18 13:48:32 PST 2004 by JaneyPoos]

Raspberry said:

Nope, again, it's in the form "x = y or z"

I think when you break it down, it should be:

2(x-3)(x+1)=0, then FOIL it...

2x+2-3x+3=0, then add/subtract...

-1x+5=0, then subtract the 5 from 0

-1x=-5, then divide -1x and -5 by -1X

x=5

??

Spookymuffin said:

they don't want you to find the value of x? what does the question actually state?

AnotherLoverToo said:

Wow, thanks for trying it, but you got the bit at the beginning wrong.
Factorised, it is: 2 (x-1) (x-2) = 0, then you have to work out from that what x equals.
I know that, without the two outside the brackets, "x=+1 or +2"

Do you get how it works now, I just wonder what that two means, like if it makes it x= +1/2 or +2/2 (i.e. 1)

I think it's throwing me off that you go to school in Britian, they word things differently... do you go to Eton?

Raspberry said:

Because 2x^2 -3x - 2 = 0 (i.e. the equation = nothing), then, when this is factorised to 2(x-1)(x-2)=0, it becomes evident that one of the multples must be 0, and so you add, in this case, 1 or 2 to make x = 0 again, but that 2 outside the brackets confuddles me.

Spookymuffin said:

Ah, well then:

2x-4-1x+2=0

1x-2=0

1x=2

x=2

Raspberry said:

Because 2x^2 -3x - 2 = 0 (i.e. the equation = nothing), then, when this is factorised to 2(x-1)(x-2)=0, it becomes evident that one of the multples must be 0, and so you add, in this case, 1 or 2 to make x = 0 again, but that 2 outside the brackets confuddles me.