book Maths Puzzle Numerical Ability

list the number sets that include 3.7

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I tried finding a solver on the site to find the reciprocal for this question.
y^2+5y-9 / y^2-9y+3
This is a bit tricky.
I simply dont understand it. hi, i need help on these kind of problems solve for x, then write the equation as a polynomial. the problem is (x-3)(x-2)=0 thank you
angel