I understand that your subing them in but where do you go from there? i mean how do you expand that?...with the perfect cubes formula listed above?..how does that work? there not being cubed there to the ^1/3..sorry im trying to think about it but am confuzzled:|! Wait do you sub a variable?
Hello, jamman790!
We want the Difference Quotient: .
Break it up into three steps:
(1) Find . . . Replace with ... and simplify.
(2) Subtract . . . Subtract the original function ... and simplify.
(3) Divide by . . . Reduce and simplify.
(1) Find
(2) Subtract
. . .Multiply top and bottom by: .
. . .
. . .
. . .
(3) Divide by
. . .