Report - C2 Edexcel Solution Bank - All Combined...(a) = + − = 4 x3 + 57x − (b) = − + + = 7 x7 − 5 x4 + 9x2 + x (c) = + = − 2 x2 + 1 (d) = + + = − x3 + 4x + (e) = − − = 7 x4

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