exam Maths Puzzle Numerical Ability

1-(1+xy^-2)^-2 divided by 1+(1+xy^-2)^-2

Directions are to simplify. Thanks

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exam Other Question

Please help me figure out this problem: 8-3(p-4)=2p Thank you! This is a problem that my teacher wrote out on the board. f(4) = 3(4) + 2