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posted by on .

how do you solve:

x²-2x-15 ≤ 0

please help :)

  • Math - ,

    You want to get two numbers that multiply to the last term (-15) and add to the middle term (-2). These numbers are -5 and 3. (x-5)(x+3) is your answer

  • Math - ,

    oh so that's it? lol i did that but i thought it wasn't correct and i've been trying other methods for the past hour. thatnx alot :)

  • Math - ,'re welcome

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