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Work out the possible values of $|x + 4| - |x - 4|$.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
It is stated that $x$ satisfies the equation $|x + 1| = 4$.
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This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Solve either a 3-term quadratic equation or a pair of linear equations” …
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