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Math Help - factor by grouping

  1. #1
    rcs
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    factor by grouping

    How possible is x^2+xy+xz+z be grouped and factor out, iv been trying but there seem no
    common binomial n the expression. Please guide me on this. Thank you
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  2. #2
    rcs
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    Re: factor by grouping

    when i tried to solve it it became:

    x(x+y) + z(x+1) ... i could not see the common here
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  3. #3
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    Re: factor by grouping

    I don't think it factorises...
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  4. #4
    rcs
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    Re: factor by grouping

    there must be something wrong with the book... it has been asked in the Activity...
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    Re: factor by grouping

    Quote Originally Posted by rcs View Post
    there must be something wrong with the book... it has been asked in the Activity...
    Are you sure you copied it correctly? I would assume that the expression is supposed to be x^2+xy+xz+yz.
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  6. #6
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    Re: factor by grouping

    Yes it can be solved when x^2 + xy +xz +yz=x(x+y)+z(x+y)
    = (x+y)(x+z).

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