please answer my question I'll Mark as you brain list
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4. 12x²-7x+1=0
12x²-4x-3x+1=0
4x(3x-1)-1(3x-1)=0
3x-1=0 , 4x-1=0
x=1/3 , 1/4..........
6x²+5x-6
6x²-4x+9x6=0
2x(3x-2)+3(3x-2)=0
3x-2=0 , 2x+3=0
x=2/3 , -3/2...........
5. x³-2x²-x+2=0
x=2,-1,2.....
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