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# What is x^1/2 =4 ?? HELP?? watch

1. x^1/2 =4

And

2x^3/2 = 6x
2. (Original post by FluffyCherry)

For each one you need to treat both sides of the equations such that you make x be on its own, without any coefficients, power ect.

For the first one, you know that if you square both sides you will have x=16.
3. X^1/2 = root x
4. (Original post by Mehrdad jafari)
For each one you need to treat both sides of the equations such that you make x be on its own, without any coefficients, power ect.

For the first one, you know that if you square both sides you will have x=16.
I see, thanx
and how about 2x^3/2 = 6x
5. (Original post by FluffyCherry)
I see, thanx
and how about 2x^3/2 = 6x
What do you think first you would have to do with both sides to eliminate the coefficient of x?
6. (Original post by Mehrdad jafari)
x
If you want to Latex a superscript with more than one character then enclose it in {}, for example, x^{1/2} produces whilst x^1/2 produces
7. (Original post by FluffyCherry)
I see, thanx
and how about 2x^3/2 = 6x
Factorise and solve.
8. (Original post by Mehrdad jafari)
What do you think first you would have to do with both sides to eliminate the coefficient of x?
2x^3/2 = 6x
2x^3/2 - 6x=0
2x(x^1/2 -3)=0

So 2x =0 Or x^1/2 -3 =0 x^1/2 =3 And now that's the part was I was confused, do I square the
9. (Original post by FluffyCherry)
2x^3/2 = 6x
2x^3/2 - 6x=0
2x(x^1/2 -3)=0

So 2x =0 Or x^1/2 -3 =0 x^1/2 =3 And now that's the part was I was confused, do I square the
Your factorized equation is the same type of problem as part (a)...

Also, it is helpful to realise that .
10. (Original post by Zacken)
If you want to Latex a superscript with more than one character then enclose it in {}, for example, x^{1/2} produces whilst x^1/2 produces
Thanks for the advice! i usually don't use latex

(Original post by FluffyCherry)
2x^3/2 = 6x
2x^3/2 - 6x=0
2x(x^1/2 -3)=0

So 2x =0 Or x^1/2 -3 =0 x^1/2 =3 And now that's the part was I was confused, do I square the
As others have pointed out, you should realise that x1/2=root3 which was the case in the first part
11. you do not need latex...

12. (Original post by the bear)
you do not need latex...

Where do you get that? I couldn't find it
13. (Original post by Mehrdad jafari)
Where do you get that? I couldn't find it
just search "ascii square root" on a search engine. google is a good one ?
14. (Original post by the bear)
just search "ascii square root" on a search engine. google is a good one ?
Oh right! So it's kind of an image?
15. (Original post by Mehrdad jafari)
Oh right! So it's kind of an image?
i... i guess ?
16. You square both sides so x=9
17. (Original post by the bear)
you do not need latex...

Using takes less time to write up than searching for asciii square root in a search engine (for me), not to mention that it is vastly neater.

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