If RA= x^2-2x-2, AT=2x^2+3x-24, and RT= x^2+5x-10.What is X?

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  • 1 month ago
    Favorite Answer

    If RA = x^2 - 2x - 2, AT = 2x^2 + 3x - 24, and RT= x^2 + 5x - 10.

    What is x?3x^2 + x - 26 = x^2 + 5x - 10

    2x^2 - 4x - 16 = 0

    2(x^2 - 2x - 8) = 0

    x^2 - 2x + 1 - 9 = 0

    (x - 1)^2 = 9

    x - 1 = 3

    x = 4

  • alex
    Lv 7
    1 month ago

    Diagram ?

    If R , A , T is on a line

    then

    RT = RA+AT

    set up an equation 

    then solve for x

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