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    How on earth do I show:

    a - [(a+b)(a+c)]/x = (ad-bc)/x

    going from left to right.
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    (Original post by MV=PT)
    How on earth do I show:

    a - [(a+b)(a+c)]/x = (ad-bc)/x

    going from left to right.
    As it stands they're not equal.

    Any further information? Is that the question exactly as supplied to you? If not, please elaborate.
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    (Original post by MV=PT)
    How on earth do I show:

    a - [(a+b)(a+c)]/x = (ad-bc)/x

    going from left to right.
    You can't, because 'd' doesn't appear on the LHS!

    What is the context for this question?
 
 
 
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