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i have a given equation of the following.

W= -A

then this equation somehow ends up like so

W=[itex]\frac{A_1B_1}{c-1}[/itex]{((B

(sorry for the messy format on the right hand side i couldn't get latex to work..)

i don't know how they got from the first equation to the second equation. i don't know where to start because i don't know how certain terms were combined.

W= -A

_{1}B_{1}^{c}[[itex]\frac{1}{-c+1}[/itex]B^{-c+1}] where the part in brackets is the integrated function of B going from B_{1}to B_{2}.then this equation somehow ends up like so

W=[itex]\frac{A_1B_1}{c-1}[/itex]{((B

_{1})/(B_{2}))^(c-1)-1}(sorry for the messy format on the right hand side i couldn't get latex to work..)

i don't know how they got from the first equation to the second equation. i don't know where to start because i don't know how certain terms were combined.

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