X平方减4X加3等于0
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X平方减4X加3等于0
4乘括号X减3平方等于X乘括号X减3
4乘括号X减3平方等于X乘括号X减3
x²-4x+3
=(x-1)(x-3)
=0
x1=1
x2=3
4(x-3)^2 = x(x-3)
(4x-12-x)(x-3)=0
3(x-4)(x-3)=0
x1=3
x2=4
=(x-1)(x-3)
=0
x1=1
x2=3
4(x-3)^2 = x(x-3)
(4x-12-x)(x-3)=0
3(x-4)(x-3)=0
x1=3
x2=4