(vi) 5- 4x(1 + 3x) factorise
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Step-by-step explanation:
5-4x-12x^2=0
12x^2+4x-5=0
12x^2+10x-6x-5=0
2x(6x+5)-1(6x+5)=0
(2x-1) (6x+5)=0
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