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I kill you
I kill you asked in Science & MathematicsMathematics · 1 decade ago

find the inequality? first correct answer gets 10 points!?

x^3-2x^2-15x < 0

in interval notation

1 Answer

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  • ted s
    Lv 7
    1 decade ago
    Favorite Answer

    factor , find the important points { -3,0,5 }..test in each subinterval to find (-∞, -3) U ( 0,5)

    should take 2 minutes of work

  • Cool Guy
    Lv 4
    1 decade ago

    take an x out so it becomes

    x(x^2 -2x-15)

    Then you factor and get

    x(x-5)(x+3) Then you can do the rest

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