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Algebra II

Solve x^2-2x=24 by factoring.

x^2-2x=24
x^2-2x-24=0
(x-2)^2 (x+6)=0
x=2 or x=-6
[-6,2](answer)

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Jon

  1. little mistake
    x²-2x-24=(x-4)(x+6)

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    mk-tintin

  2. Factoring
    x^2 - 2x - 24
    =(x + 4)(x - 6)
    Roots are -4 and 6.

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    Quidditch

  4. I'm not sure what you mean by that.

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    Quidditch

  5. I thought I had to put them in like ordered pairs.

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    Jon

  6. I don't think it should matter. Perhaps your teacher might have some requirement. The answers are -4 and 6. These are both domain values for the function. When expressing domain and range values in a function, the x and y values are shown as (x,y) indicating (domain, range). So maybe you could express these as (-4,0) and (6,0). Maybe someone else can comment here about this.

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    Quidditch

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