Expand: (3x-1)(x+5)(4x-3)
(3x^2+14x-5)(4x-3)= 12x^3-9x^2+56x^2-42x-20x+15=12x^3+47x^2-62x+15
WH
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What is the nth term of the sequence 5, 7, 9, 11....
2a + 6b = 24, 3a + b = 20
Factorise 12x^2 - 20x + 3