math

solve for x.
1.25x^2=13
2.2(x-5)^2=3

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  1. solve for x.
    1.25x^2=13
    2.2(x-5)^2=3

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    2. 👎
  2. 1)

    divide both sides by 25, we get

    x^2=13/25

    take square root

    x = +/- sqrt(13/25)

    sqrt means square root. example: sqrt(5) means square root of 5.

    2)
    The same kind of problem:

    divide by 2 on both sides:

    (x-5)^2 = 3/2

    take square root:

    x-5 = +/- sqrt(3/2)

    add 5 on both sides:

    answer x = 5+sqrt(3/2)

    or x= 5-sqrt(3/2)

    contact me for quick homework help at a small fee:

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