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Determine the values of $x$ for which the inequality $|x + 3| < |2x + 1|$ holds.
Mathematics 9709 · AS & A Level · Algebra
Determine the values of $x$ for which the inequality $|x + 3| < |2x + 1|$ holds.
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State or imply the non-modular inequality $(x+3)^2 < (2x+1)^2$ or the matching equation or the equivalent pair of linear equations” …