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7x2 + 5x – 2 factor problem completely?

Factor problem completely

7x2 + 5x – 2

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9 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    7x2=14.

    14 + 5 = 19 - 2 = 17X

  • 9 years ago

    7x2 +5x -2

    14 +5x -2

    collect like terms

    5x + 12

    to factor even more > 5(x+2.4)

  • 9 years ago

    Ok I'm an algebra 2 student and in math team so i'll help you out by teaching you!

    Simple I'm only assuming that you meant 7xsquared +5x - 2 = 0 ok?

    Now There are many methods to factor "x-puzzle" "box method" "guess and test"

    Okay now through x method it's different you can research these three methods however you have to factor this quadratic equation into two binomials

    7x^2 + 5x - 2 ------------> (7x-2)(x+1) try using FOIL (First, Out, In, Last) you can research that ok?

    That's about it try to memorize at least one of the methods i'd recommend the guess and test and x-puzzle

    Source(s): Me Math Team Algebra Two
  • 9 years ago

    -5+- the square root of 5(5)-4(7)(-2) and then all of that over 2(7)

    Then you have -5+-9 over 14

    so X=2/7 and X=-1

    Source(s): HS math
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  • Anonymous
    9 years ago

    7x2 + 5x - 2

    14 + 5x - 2

    +2         +2

    __________

    14 + 5x or 5x + 14 w/e <-- My Answer

    I think xD

    Source(s): Math
  • 9 years ago

    im going to use grouping;

    7x2+7x-2x-2 <--- 7x-2x=5x

    7x(x+1) -2(x+1)

    answer= (7x-2)(x+1)

    Source(s): algebra2 honors class
  • 9 years ago

    7x2+7x-2x-2

    = 7x(x+1)-2(x+1)

    =(x+1)(7x-2)

  • 9 years ago

    7x^2+5x-2

    7x^2+7x-2x-2

    7x(x+1)-2(x+1)

    (x+1)(7x-2)

  • Anonymous
    9 years ago

    make the question more clear

    im guesing you mean

    7*2 + 5(-2)??????????????????????????????????/

    7*2=14

    =14+5(-2)

    =14+-10

    =4

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