Math

Simplfy the following
(x^2-9x+9)-(-2x+4)+(6x^2-7x-5)

solution:
x^2-0 -x+2+
thats as far as I got

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asked by nadine
  1. (x^2-9x+9)-(-2x+4)+(6x^2-7x-5)
    = (x^2+11x+5)+(6x^2-7x-5)
    = 7x^2-4x

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    posted by Kimberly
  2. write 0.003191 in scientific notation

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    posted by nadine

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