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Solve $|x - 4| < 2|3x + 1|$.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State or imply $(x-4)^2<(2(3x+1))^2$, or an equivalent quadratic form, or $x-4=\pm2(3x+1)$” …
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