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Help with this question C1 Maths Watch

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    (Original post by Zacken)
    Apologies for the drama, ignore it - it's not a usual occurrence. Did we answer your question or do you need further clarification?
    just want a step by step method really thats all
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    (Original post by bobjon22444)
    just want a step by step method really thats all
    I don't normally do this but after this thread you probably deserve it

    (x^2-4x)(x+3) + 6x

    = x(x-4)(x+3) + 6x

    = x\left [ \ (x-4)(x+3) + 6 \ \right]

    Expand the stuff inside the brackets and then you are done.


    Alternatively, expand from the start and then factorise.
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    (Original post by bobjon22444)
    can someone give me a method to work out these type of questions please

    thank you


    First you should expand the double brackets, ensuring you then collect like terms, simplifying it. This should make a cubic expression. Then just divide this expression by 'x', so for example if you had 3x^3 your new answer would be 3x^2, if this makes sense. Once all your terms have been divided by 'x' simply put brackets around the new expression and write x in front of the brackets. If you wanted to check if your answer was correct, you could multiply the brackets by x and your answer should equal to the original equation

    Obviously there are other ways of working the answer out, but for someone who has difficulty in these style questions this can often be the simplest method of calculation! Hope I helped xx
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    (Original post by notnek)
    I don't normally do this but after this thread you probably deserve it

    (x^2-4x)(x+3) + 6x

    = x(x-4)(x+3) + 6x

    = x\left [ \ (x-4)(x+3) + 6 \ \right]

    Expand the stuff inside the brackets and then you are done.


    Alternatively, expand from the start and then factorise.
    thats great i worked it out. Looks like i have to practise lots. thanks for the help again
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    its really simple.
    1. expand brackets and simply to get x^3-x^2-6x.
    Then you remove all the x's (factorise it) to get x(x^2-x-6)
    2. After you have factorised it you factorise the numbers in the bracket to get x-3)(x+2)
    So the answer will become: : x(x-3)(x+2)
    You can check it by factorising it also ^ just means the power to eg x^2 so x squared just if anyone was wondering
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    (Original post by TeeEm)
    because this is sensible for typical students
    I think Muttley79 wants your base 10 log between her limits

    get in there Teeeeeeee
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    (Original post by DuckWithBigNuts)
    I think Muttley79 wants your base 10 log between her limits

    get in there Teeeeeeee
    Shots fired
 
 
 
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