3x^2-7=0(2x-1)^2=9(x-2)(x-5)=-2
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3x^2-7=0(2x-1)^2=9(x-2)(x-5)=-23x^2-7=0(2x-1)^2=9(x-2)(x-5)=-23x^2-7=0(2x-1)^2=9(x-2)(x-5)=-23x²
3x^2-7=0(2x-1)^2=9(x-2)(x-5)=-2
3x^2-7=0
(2x-1)^2=9
(x-2)(x-5)=-2
3x^2-7=0(2x-1)^2=9(x-2)(x-5)=-2
3x²-7=0
x²=7/3
x=-√21/3,x=√21/3
(2x-1)^2=9
2x-1=±3
x=(1±3)/2
x=-1,x=2
(x-2)(x-5)=-2
x²-7x+10=-2
x²-7x+12=0
(x-3)(x-4)=0
x=3,x=4
3x^2-7=0
3x²=7
x²=7/3
x=±根号(7/3)
x1=根号7/3 x2= -根号7/3
(2x-1)^2=9
2x-1=±3
x=(1±3)/2
x1=2 x2=-1
(x-2)(x-5)=-2
x²-5x-2x+10+2=0
x²-7x+12=0
(x-3)(x-4)=0
x1=3 x2=4
3x^2-7=0 ,x=±√21/3
(2x-1)^2=9 ,x=1/2±3/2 x=2或-1
(x-2)(x-5)=-2
x^2-7x+12=0
(x-3)(x-4)=0
x=3或4