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    (a-b)* [(a-c)/(b+d)] (1)

    =>

    [a(b+d)-b(a-c)]/(b+d) (2)

    How do I get from step 1 to step 2?
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    (Original post by APersonYo)
    (a-b)* [(a-c)/(b+d)] (1)

    =>

    [a(b+d)-b(a-c)]/(b+d) (2)

    How do I get from step 1 to step 2?
    You can't - they're not the same.

    (1) expanded has a^2 in the numerator. (2) expanded does not.

    You want to post the original question with any working you've done - I presume that is just part of it.
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    (Original post by ghostwalker)
    You can't - they're not the same.

    (1) expanded has a^2 in the numerator. (2) expanded does not.

    You want to post the original question with any working you've done - I presume that is just part of it.
    This is something I've got from my lecture slide. That's the complete deal. Guess its wrong then?
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    (Original post by APersonYo)
    This is something I've got from my lecture slide. That's the complete deal. Guess its wrong then?
    Can you take a screenshot or a photograph of the slide?
 
 
 
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