book Maths Puzzle Numerical Ability

4x(x-2)less than 2(2x-1)(x-3)
solve,graph and write your answer in interval notation

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book Other Question

(((((((Find the rationalroots of f. List any irrational roots correct to two decimal places f(x)=x^4-3x^3-4x^2=18x-12)))))))) Speed limit 35 mph. ticket for going 44 mph and one for going 51 mph. Second ticket cost 21 dollars more than the first one. What is the cost of going over the speed limit.