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Factorise:84 - 2r - 2r×r |
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Answer» Step-by-step explanation: 84 - 2r - 2r^2 = 2r^2 -2r - 84 = 2r^2 + 12r - 14r - 84 = 2r(r + 6) - 14(r + 6) = (2r - 14)(r + 6) ANS Hope I helped |
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