exam Maths Puzzle Numerical Ability

I have one more problem please:
Solve the inequality and state and graph the solution set:
x^2-12x+27<0
Thank you very much!

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exam Other Question
the reciprocal of the sum of ten and a number Find the value of k that will make x-2 a factor of x4</sup>-3x3</sup>+4x2</sup>+2x+k