1,(2x-1)^2=9 2,3x^2-7x=0

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1,(2x-1)^2=9 2,3x^2-7x=0

1,(2x-1)^2=9 2,3x^2-7x=0
1,(2x-1)^2=9 2,3x^2-7x=0

1,(2x-1)^2=9 2,3x^2-7x=0
1,(2x-1)^2=9
2x-1=3或2x-1=-3
2x=4或2x=-2
x1=2 x2=-1
2,3x^2-7x=0
x(3x-7)=0
x1=0 x2=7/3