Maths help "/

[Sly]

X2+3xX-7 = 0

You need to think on a Number (X) and square that number, Add 3 then times by X and take seven away and you should get 0 as answer

But i cant find out what X is

[Toes]

X2+3xX-7 = 0

You need to think on a Number (X) and square that number, Add 3 then times by X and take seven away and you should get 0 as answer

But i cant find out what X is

Is that advanced higher maths or something?

[Sly]

Not sure, just got it for homework

You might need a calculator :P

[DaveTaylor]

X = 4 i think

[Sly]

X = 4 i think

That comes to 69

[DaveTaylor]

mayeb not then, i am rubbish at maths ;P

[Catchetat]

1.55?

i'm not sure how u do x2+3x=7 yet..

im stuck there

[Jane]

X2+3xX-7 = 0

You need to think on a Number (X) and square that number, Add 3 then times by X and take seven away and you should get 0 as answer

But i cant find out what X is

Doesn't 3xx mean 3 times x times x again?

n if that's right ^^ It's somewhere between 1.24 and 1.25

[DMB-Hosting]

I think its between 1.54 and 1.55

[Sly]

Thanks, Any1 know the 100% correct answer?

[BL!NKEY]

well if the question is X^2 +3x -7

then you should get two answers.

if you use the quadrac formula you get

-3+(square root of 37)
2

and

-3-(square root of 37)
2

[Sly]

Urgh, i found out that to find the 100% correct answer wont fit on any calculator that i could get hold of cause there is like 100000000 decimal places :S

[Colourful™]

-4 & 8x
- I think, because we're doing this at school at the moment.

[iluvben]

Urgh, i found out that to find the 100% correct answer wont fit on any calculator that i could get hold of cause there is like 100000000 decimal places :S
Just but the number then the recurring sign then :rolleyes:

[Chaz]

I'm doin' this in math at the moment. What year yoo in?

[Sly]

I'm doin' this in math at the moment. What year yoo in?

Year 10 :)

[Colourful™]

I'm in year 9

[nets]

I don't understand how you've written it?
Is it supposed to be:
((X*2) + (3*X)) * - 7 = 0

Or..
(X² + 3*x) * -7 = 0

Edit: Wait, or is it:
(X²+3) * X-7 = 0

[Jane]

Urgh, i found out that to find the 100% correct answer wont fit on any calculator that i could get hold of cause there is like 100000000 decimal places :S

Use computer calculator then.

[xJoeYx]

5X = 7

1.4 isnt it?