Saturday, March 20, 2010

Factoring

Post your rule for group factoring here. Let's play a game. Write one line of the rule and let your classmates build on it. I'll start. Multiply a and c terms of the quadratic expression.
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7 comments:

  1. AnonymousMarch 21, 2010 at 4:06 PM

    This comment has been removed by a blog administrator.

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  2. AnonymousMarch 21, 2010 at 5:04 PM

    Since Mark wrote more than one line of the rule i cannot build on the rule.
    Simon Bellido

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  3. PatriciaMarch 21, 2010 at 5:54 PM

    Mark one line and one line only!! Simon repost on Monday please.

    ReplyDelete
  4. AnonymousMarch 22, 2010 at 5:04 PM

    You multiply a and c to find the middle term. Find two factors of ac that has a sum of B.
    Ex. 48x^2 + 46x + 5
    48 times 5 = 240
    Factors of 240
    Factor - Sum
    1 times 240 - 1 + 240 = 241
    2 times 120 - 2 + 120 = 122
    3 times 80 - 3 + 80 = 83
    4 times 60 - 4 + 60 = 64
    5 times 48 - 5 + 48 = 53
    6 times 40 - 6 + 40 = 46
    Another way is to divide the product of a and c divide by any number then add the quotient by the number dividing. Quick way of finding the middle term
    ex. 240/6 = 40 40 + 6 = 46
    Mark Soriano

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  5. AnonymousMarch 22, 2010 at 5:42 PM

    My line is find two factors of ac that has a sum of b. I just the rest of tge stuff to explain
    mark soriano

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  6. PatriciaMarch 22, 2010 at 7:26 PM

    much better. Thanks Mark.

    ReplyDelete
  7. AnonymousMarch 23, 2010 at 1:52 PM

    multiply a and c, then yoou must find two numbers that add up to equal b

    Brendan Mulligan

    ReplyDelete

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