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Math Help - Factoring polynomials 6 qs

  1. #1
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    Unhappy Factoring polynomials 6 qs

    1) 4x^2-24x+20
    2) 12p^2+23p+10
    3)12x^2-24x-15
    4)12x^2+48x+96
    5)y^2-7y+6
    6)28m^2-5m-3

    Can some one help me? So far ive gotten:
    1) (x+5) (4x+4)
    2) Not factorable
    3) Not factorable
    4) Not factorable
    5) (x-6) (x-1)
    6) (m+12) (28m-7)

    Im scared cus how can 3 problems be not factorable! Theres definitely a problem!
    SOLVED!!!!!!
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  2. #2
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    Quote Originally Posted by adit17 View Post
    1) 4x^2-24x+20
    2) 12p^2+23p+10
    3)12x^2-24x-15
    4)12x^2+48x+96
    5)y^2-7y+6
    6)28m^2-5m-3

    Can some one help me? So far ive gotten:
    1) (x+5) (4x+4) Mr Fantastic says: Wrong. Expand it and see why.
    2) Not factorable Mr Fantastic says: Wrong.
    3) Not factorable Mr Fantastic says: Wrong. For starters, 3 is a common factor. The quadratic factor can be factorised.
    4) Not factorable Mr Fantastic says: Wrong. 12 is a common factor.
    5) (x-6) (x-1) Mr Fantastic says: Wrong pronumeral.
    6) (m+12) (28m-7) Mr Fantastic says: Expand it and check for yourself.

    Im scared cus how can 3 problems be not factorable! Theres definitely a problem!
    SOLVED!!!!!!
    ..
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  3. #3
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    Quote Originally Posted by adit17 View Post
    1) 4x^2-24x+20
    2) 12p^2+23p+10
    3)12x^2-24x-15
    4)12x^2+48x+96
    5)y^2-7y+6
    6)28m^2-5m-3

    Can some one help me? So far ive gotten:
    1) (x+5) (4x+4)
    2) Not factorable
    3) Not factorable
    4) Not factorable
    5) (x-6) (x-1)
    6) (m+12) (28m-7)

    Im scared cus how can 3 problems be not factorable! Theres definitely a problem!
    SOLVED!!!!!!
    See rule #6: http://www.mathhelpforum.com/math-he...hp?do=vsarules

    Thread closed.
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