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big k
Jan 18, 2007, 11:51 AM
the equation I'm given is x*x=x+x+x+x


pleasehelp asap I just don't get how u get a soulution to it as there are no numbers to start with :confused:

thanks to all that try and help :P

Thegreywizard
Jan 18, 2007, 11:54 AM
ancer is x*x=4x
x*x/x=4x/x
x= 4



hope I'm right

Tuscany
Jan 18, 2007, 11:57 AM
The equation is asking this:

What two numbers multiplied together = 4 numbers added together.

Guess and Check is a good strategy for this.

CaptainForest
Jan 18, 2007, 07:16 PM
x*x=x+x+x+x
x^2 = 4x
x^2 - 4x = 0
(x+0) (x-4) = 0

x + 0 = 0
x = 0

x – 4 = 0
x = 4

Therefore, x = 0 or 4