exam Maths Puzzle Numerical Ability

I need help with the following problem.

1/p+1 + 1/p-3 - 4/p2-2p-3

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exam Other Question

How do i divide the problem.

(n to the second+12n+32) divided by (n+7)
Identify the vertex, axis of symmetry, and direction of opening for:

y=1/2(x-8)^2+2.

Thank you