OCR C1 2011 January — Question 4

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2011
SessionJanuary
TopicQuadratic Functions
4 By using the substitution \(u = ( 3 x - 2 ) ^ { 2 }\), find the roots of the equation $$( 3 x - 2 ) ^ { 4 } - 5 ( 3 x - 2 ) ^ { 2 } + 4 = 0$$
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