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WooBin

  • 4 years ago

simplify 2x^2−x−3

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  1. jimmyrep
    • 4 years ago
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    (2x -3(x+1)

  2. Beautifulgirl17
    • 4 years ago
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    (2x-3)(x+1)

  3. WooBin
    • 4 years ago
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    explain dude!

  4. jimmyrep
    • 4 years ago
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    ok - sorry to factor these you need to find two numbers with a product of -3 and a sum of 2* one of numbers + other number which gives -1 here they are -3 and +1 and you multiply the +1 by 2 to give you -3 +2(1) = -1

  5. jimmyrep
    • 4 years ago
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    i do these by making 3 columns as follows 2x -3 -1x (aim for this) ------------------------- 2 X x -3 * +1 -3 + 1*2 = -1

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