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Maths question

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    factor theorem question:

    -4x^3+8x^2+29x+12

    I got (x-4)(2x+3)-2(x+1) but think its wrong lol could someone work it out, cheers
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    (Original post by DeCosta)
    factor theorem question:

    -4x^3+8x^2+29x+12

    I got (x-4)(2x+3)-2(x+1) but think its wrong lol could someone work it out, cheers
    Part if what you've written is correct.
    -4x^3+8x^2+29x+12=-(x-4)(2x+3)(\text{something)}.

    In the future, test the factors. If you say that -4x^3+8x^2+29x+12=f(x) then your (x+1) bracket would suggest a factor of -1. If you evaluate f(-1) you will find that it \neq 0 .
 
 
 
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