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#1 2013-02-11 04:01:58
- cooljackiec
- Full Member
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x =
Find all real values of x that satisfy the equation (x^2-82)^2 = 324
Last edited by bobbym (2013-02-11 05:04:17)
I see you have graph paper.
You must be plotting something
#2 2013-02-11 04:55:53
- bobbym
- Administrator
Online
Re: x =
Hi;
x = 10, x = 8, x = -8, x = -10
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#3 2013-02-11 06:59:25
- cooljackiec
- Full Member
Offline
Re: x =
help me on another one
\frac{c}{c-5}=\frac{4}{c-4}
FInd c.
Also, the LaTeX doesn't seem to work..
I see you have graph paper.
You must be plotting something
#4 2013-02-11 07:02:06
- bobbym
- Administrator
Online
Re: x =
Hi;
Latex is out temporarily.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#5 2013-02-11 16:49:24
- Sabbir
- Guest
Re: x =
If you cross multiply,then you'd get c^2-4c=4c-20 which is c^2-8c+20=0,now you just have to find the polynomial's roots.
#6 2013-02-11 22:20:14
- bobbym
- Administrator
Online
Re: x =
Hi;
I am getting
c = 4 - 2 i and c = 4 + 2 i
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.