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1. Factorise.a. 11ab^2-c + 22ab - 11abc |
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Answer» (4a-5b)(2a-3B) Step-by-step explanation: 8a^2-22ab+15b^2 8a^2-10ab-12ab+15b^2 2a(4a-5b)-3b(4a-5b) (4a-5b)(2a-3b) |
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