What is the difference of the rational expressions below? 6/x-5x/x+2

A.5x/2+ 6/2
B. 5x + 6x +12
** + 2x
c.5x6
2x+2
D. 5x' +6x +12
2x + 2

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Divide. write in the simplest form. 4 1/6 divided by 10

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103