exam Maths Puzzle Numerical Ability

Solve and graph: 2 - |x| ≥ -2, D = {Integers}

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exam Other Question

when the smaller of two consecutive integers is added to three times the larger, the result is 43. find the integers. I need so help with this problem.
given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70 what is the value of a?