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Determine the set of $x$ values that satisfy the inequality $3|x - 1| < |2x + 1|$.
Mathematics 9709 · AS & A Level · Algebra
Determine the set of $x$ values that satisfy the inequality $3|x - 1| < |2x + 1|$.
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State or imply the non-modular form $3(x-1)^2 < (2x+1)^2$ or the equivalent quadratic equation, or solve $3(x-1)=\pm(2x+1)$” …