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[Maths] Why don't you expand the denominator in this algebraic fraction? Watch

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    Would I lose marks in the exam if I expanded the denominator:

    x^2-2x-6/(x+2)(x+1)

    because I was doing some My Maths revision and the final answer was the one above whereas I expanded the quadratic to get x^2+x+2x+2.
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    (Original post by BTAnonymous)
    Would I lose marks in the exam if I expanded the denominator:

    x^2-2x-6/(x+2)(x+1)

    because I was doing some My Maths revision and the final answer was the one above whereas I expanded the quadratic to get x^2+x+2x+2.
    In the exam, provided they see the former version, probably not. Expanding it is a waste of time and energy. Don't.
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    As a general rule I wouldn't bother expanding any factorised quadratics in your final solution. They prefer factorised as it's a more simple form.
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    (Original post by Zacken)
    In the exam, provided they see the former version, probably not. Expanding it is a waste of time and energy. Don't.
    (Original post by Cany0n)
    As a general rule I wouldn't bother expanding any factorised quadratics in your final solution. They prefer factorised as it's a more simple form.
    Tank you all. +rep
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    (Original post by Zacken)
    In the exam, provided they see the former version, probably not. Expanding it is a waste of time and energy. Don't.
    And you're more likely to make mistakes
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    (Original post by BTAnonymous)
    Tank you all. +rep
    No problem!
 
 
 
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