algebra

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©ø¡î-27

= 9¡î-3

is this correct

  • algebra -

    sorry I did not realize sqrt could not be read

    It should read
    sqrt-27 with a little three on the outside.

    and my answer is

    9sqrt-3

  • algebra -

    sqrt(-27)

    First, you have the square root of a negative. Use i to express the sqrt(-1):
    i*sqrt(27)

    Consider that 27 = 3^3, or 9*3.

    = i*sqrt(9*3)

    The sqrt(9) is 3, so you have 3i*sqrt(3)

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