(main)[3]
Solve the inequality $|2x + 1| < |2x - 5|$ for $x$.
Mathematics 9709 · AS & A Level · Algebra
Solve the inequality $|2x + 1| < |2x - 5|$ for $x$.
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State or imply the non-modular inequality $(2x+1)^2 < (2x-5)^2$, or the equivalent equation or a pair of linear equations” …