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Re: Basic algebra question!
Posted:
Aug 22, 2013 12:16 PM


Hi M F D,
You get Step 2 from Step 1 by multiplying out and regrouping, as follows:
Multiply v by its two factors in the first group less v times (f/a) from the second group
then multiply (d/2) by its two factors in the first group plus (because of double negative) (d/2) times (f/a) from the second group.
Regroup with v outside the first set of square brackets and (d/2) outside the second set of square brackets and you are there.
Regards, Peter Scales.



