The following expression i am looking to confirm whether my answer is correct:

For the above expression my answer is

The book however has the answer as

Can anyone verify if i'm incorrect in my answer and why?

Cheers

BIOS

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- October 1st 2010, 03:21 PMBIOSSolution to Simplification of Algebraic Expression
The following expression i am looking to confirm whether my answer is correct:

For the above expression my answer is

The book however has the answer as

Can anyone verify if i'm incorrect in my answer and why?

Cheers

BIOS - October 1st 2010, 03:37 PMskeeter
- October 1st 2010, 03:57 PM1005
it's always good to have methods to check if your answers are right (because it in the real world you don't have a solution to check it against)

for example, here you could have evaluated the 3 expressions with a simple a such as 2:

so you could have now comfortably rejected the book's answer without verification from an authority figure.