用因式分解法解出下列方程:(4x-1)(5x+7)=03x(x-1)=2(1-x)(x+1)^2-25=02(x-3)=x^2-9
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用因式分解法解出下列方程:(4x-1)(5x+7)=03x(x-1)=2(1-x)(x+1)^2-25=02(x-3)=x^2-9
用因式分解法解出下列方程:
(4x-1)(5x+7)=0
3x(x-1)=2(1-x)
(x+1)^2-25=0
2(x-3)=x^2-9
用因式分解法解出下列方程:(4x-1)(5x+7)=03x(x-1)=2(1-x)(x+1)^2-25=02(x-3)=x^2-9
(4x-1)(5x+7)=0
4x-1=0或5x+7=0
x=1/4或x=-7/5
3x(x-1)=2(1-x)
3x(x-1)-2(1-x)=0
3x(x-1)+2(x-1)=0
(x-1)(3x+2)=0
x=1或x=-2/3
(x+1)²-25=0
(x+1+5)(x+1-5)=0
(x+6)(x-4)=0
x=4或x=-6
2(x-3)=x²-9
2(x-3)-(x²-9)=0
2(x-3)-(x+3)(x-3)=0
(x-3)(2-x-3)=0
(x-3)(-x-1)=0
x=3或x=-1
(4x-1)(5x+7)=0
x1=1/4,x2= -7/5
3x(x-1)=2(1-x)
3x(x-1)+2(x-1)=0
(x-1)(3x+2)=0
x1=1,x2=-2/3
(x+1)^2-25=0
(x+1+5)(x+1-5)=0
x1=-6,x2=4
2(x-3)=x^2-9
2(x-3)-(x+3)(x-3)=0
(x-3)(2-x-3)=0
x1=3,x2= -1
4x-1=0 5x+7=0
x=1/4 x=-7/5
(3x+2)(x-1)=0
3x+2=0 x-1=0
x=-2/3 x=1
(x+1-5)(x+1+5)=0
x-4=0 x+6=0
x=4 x=-6
2(x-3)=(x-3)(x+3)
0=(x-3)(x+3-2)
x-3=0 x+1=0
x=3 x=-1