book Maths Puzzle Numerical Ability

Solve each inequality. Give the solution set in both interval and graph forms.
I am lost in this I was able to work one problem 4-6x+3>1 -- I did it but then I came to this one wi

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book Other Question
Solve inequalities:

a) {{{x^3<8}}}

b) {{{x^3-x^2-9x+9>0}}}

c) {{{(2x^2-3x+1)/(x+1)>0}}} add or subtract,simplify if possible and show steps to answer

16+X/x^3 + 7-4X/X^3