14. 6х2 - 7x -20. Factorise the following
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6x²-7x-20
120= 2,2,2,3,5
15*8
6x²-(15x-8x)-20
=6x²-15x+8x-20
=3x(2x-5)+4(2x-5)
=(3x+4)(2x-5)
is my ans correct???
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