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anonymous

  • 5 years ago

HI I'm simply supposed to factor this problem: 9x^2 + 7xy - 2y^2

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  1. anonymous
    • 5 years ago
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    I can't remember how to do it

  2. anonymous
    • 5 years ago
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    \[9x^{2} + 7xy - 2y^{2}\] \[(ax + by)(cx - dy) = (ac)x^{2} - (ad)xy + (bc)xy - (bd) y^{2}\]

  3. anonymous
    • 5 years ago
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    you just have to grind it until you find it. (3x-2y)(3x+y) nope (3x-y)(3x+2y) nope try (9x-2y)(x+y)

  4. anonymous
    • 5 years ago
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    groovy 9x^2 - 2xy +9xy -2y^2

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spraguer (Moderator)
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