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Charlotte
Charlotte asked in Science & MathematicsMathematics · 5 years ago

How do I factorise this X^2 - 2x + 15= 0?

3 Answers

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  • Callum
    5 years ago

    x2 - 2x + 15 = 0

    (x - 5)(x + 3) = 0

    x = 5 or -3

  • ?
    Lv 7
    5 years ago

    Perhaps you meant x^2 -2x -15 ? (x+3)(x-5) =0

  • Pythagoras
    Lv 7
    5 years ago

    Since there is no number in front of the x^2 term, you are looking for two numbers that mulitply to give you +15 and added together give you -2.

    However, this does not appear possible. Did you mistype the equation? Maybe it was - 15?

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