exam Maths Puzzle Numerical Ability

I could really use some help with this:
Solve the problem:
p(x)+-0.002x²+1.2x-300

Thanks in advance

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exam Other Question
The amount of Flim (I) is inversely proportional to the amount of Flam (A). Write a general equation that summarizes this relationship. find a graph for:
1/2 x-4
2x-4
1/2x+4
2x+4