Factorise 2x² (x+1) - (x+1)
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We have
2x²-x+1/8
taking lcm we have
16x²-8x+1=0
16x²-(4+4)x+1=0
16x²-4x-4x+1=0
4x(4x-1)-1(4x-1)=0
4x-1=0
x=1/4
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