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Simplifying and Factorising by Grouping
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Simplifying and Factorising by Grouping
IP 1
6 marks
Expand and simplify \(-\frac14\left[4x\left(\frac3x+5y\right)-8y\left(x-\frac1{2y}\right)\right]\).
[3]
Factorise \(4b-3a-(6as-8bs)\) completely.
[3]
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Answer:
(a) \(-3xy-4\) (b) \((4b-3a)(1+2s)\)
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