## Stuck on rearranging of this equation

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tobriain
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Joined: Fri Jul 05, 2013 2:05 pm
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### Stuck on rearranging of this equation

Hi,

I need to get from

[(1-p)f+p(1-f)](1+v)-[(1-p)(1-f)+pf] = x

to (2+v)(f+p-2pf)-1 = x

but I'm stuck. I'd appreciate any tips on what I should I do after the following.

(f+p-2pf)(1+v) + (f + p - 2pf) - 1 = x

Thanks in advance.

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
Contact:
I need to get from

[(1-p)f+p(1-f)](1+v)-[(1-p)(1-f)+pf] = x

to (2+v)(f+p-2pf)-1 = x

but I'm stuck. I'd appreciate any tips on what I should I do after the following.

(f+p-2pf)(1+v) + (f + p - 2pf) - 1 = x
You've done the hard part. Now do the easy last step: Factor out the common expression from each of the first two "terms":

. . . . .(1 + v)(f + p - 2pf) + (1)(f + p - 2pf)

Simplify what's left, and you're done!

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