exam Maths Puzzle Numerical Ability

Please simplify this:

1/a-b + 4/b-a - 8/a+b - 11a-5b/b^2-a^2

I have no idea where to begin. Please help--Thanks.

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exam Other Question

Graph each solution: A: |x|>5 B: |x-3|>5 C: |x+3|>5

Please help me solve this...thank you. Ben and Jerry start from the same point and ride their bicycles in opposite directions. If Ben rides twice as fast as Jerry and they are 90 miles apart after four hours, then what