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Thread: factoring

  1. Jun 4th 2012, 07:13 PM #1
    zbest1966
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    factoring

    2(a+b)2 + 5(a + b) - 3

    ans [(2(a + b) + 1)][(a + b) + 3]
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  2. Jun 4th 2012, 07:38 PM #2
    Soroban
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    Re: factoring

    Hello, zbest1966!

    There's something wrong with the problem.
    Please check for typos.

    2(a+b)2 + 5(a + b) - 3

    ans: [(2(a + b) + 1)][(a + b) + 3] . . . . This is wrong.

    \big[2(a+b) + 1\big]\big[(a+b)+3)\big] \;=\;(a+b)^2 + {\color{red}7}(a+b)\,{\color{red}+}\,3


    The correct factoring is: . \big[2(a+b) - 1\big]\big[(a+b) + 3\big]
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  3. Jun 4th 2012, 07:43 PM #3
    highvoltage
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    Re: factoring

    factoring-001.jpg
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