OCR C3 2015 June — Question 4

Exam BoardOCR
ModuleC3 (Core Mathematics 3)
Year2015
SessionJune
TopicModulus function
4 It is given that \(| x + 3 a | = 5 a\), where \(a\) is a positive constant. Find, in terms of \(a\), the possible values of $$| x + 7 a | - | x - 7 a |$$
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