Quick derivation question Quantum Mechanics

[rwooduk]

Homework Statement

Having one of those days where nothing makes sense, here is the derivation:

how does he get the two circled terms from what he's derived above?

Homework Equations

N/A

The Attempt at a Solution

I tried substitution but get nowhere I just can't see how the early expressions help in getting the circled expressions.

once again, any pointers in the right direction would be appreciated

 

[Fightfish]

Er...isn't it just a matter of multiplying both sides by $i \hbar$?

 

[rwooduk]

Er...isn't it just a matter of multiplying both sides by $i \hbar$?

thanks i'll go shoot myself now.

appreciated ;-)