# Thread: Long equation , is this a legitimate equation or a joke?

1. ## Long equation , is this a legitimate equation or a joke?

i saw this posted & would like to
Know if it can be worked or it's
just a fake problem ??

2. ## Re: Long equation , is this a legitimate equation or a joke?

If you can figure out what (512.0, 5)2 and (6.0, 5)8 mean then yes you can work it out. I suspect that (x, y)n means xn+ yn.

3. ## Re: Long equation , is this a legitimate equation or a joke?

thanks.
I'm not at all mathematically inclined.
That's why I posted this to the forum
because my friends aren't either & assumed
this was a joke because it was attached to
a silly web graphic.
Do you know the correct answer to this?
I'd like to rub it in their face. Ha ha

Thanks for replying even thus far

4. ## Re: Long equation , is this a legitimate equation or a joke?

The 10 th power blows up the the whole answer...it becomes immensely large...
But still, assuming the commas to be typos and a little help from a casio scientific calculator gives an approximate answer of(Also assuming I read the whole question correctly):
$\displaystyle (14.45 \times 10 ^{10} )-(7.9 \times 10^{5})$

Which is HUGE!!!

5. ## Re: Long equation , is this a legitimate equation or a joke?

In other parts of the world, commas are often used as decimal points. Every time you see a 0,5 think of it as 0.5.

If there's a joke to it (other than being a lot of computation), I don't see it. The expression simplifies down to 87051515887.

6. ## Re: Long equation , is this a legitimate equation or a joke?

I figured that it wasn't a decimal point because the square root of a square would get simplified, but that simplification isn't possible with the way I interpreted the comma.