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posted by Tshenolo on Friday, February 25, 2011 at 2:38pm.

Factorise showing your work. 48a^2+4ab-140b^2

48a^2 + 4ab - 140b^2 Factor out 4 4(12a^2 + ab - 35b^2) 4(3a - 5b)(4a + 7b)

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