exam Maths Puzzle Numerical Ability

n^-2/n^3

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exam Other Question

26:
[1/(x - 3)] + [1/(x + 3)] = [10/(x2 - 9)]
graph f(x)=|x-3|+2 include all intercepts and the vertex. I am not sure how to do the absolute value signs on here but they should go where the parentheses are.
Thank you