lilg132
factorise 5r - sr + 10n - 2sn
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estudier
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Do it in pairs......
lilg132
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your a big help estudier
i cant can you help me or atleast teach me the method you would use to work this out, by saying do it in pairs its useless to me
estudier
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5r - sr is r(5-s) That's the first pair.
(Sorry to be oblique but I was just complained at for giving the answer too easily)
lilg132
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2n ( 5 - s )
estudier
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There u go, now factor your (5-s) out of both and you are done.
lilg132
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(2n + r) (5 - s)
lilg132
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thanks for your help :)