3 years ago

What is the difference??

1 answer:

3 0

9/x^2 - (2x + 1)/8x = 72/8x^2 - x(2x + 1)/8x^2 = (72 - x(2x + 1))/8x^2 = (-2x^2 - x + 72)/8x^2. C is the correct answer.

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