X(2X-1)=1-2X(2X-5)^2-(X+4)^2=05X^2-8X+2=0(X-2) (2X-9)=-6

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X(2X-1)=1-2X(2X-5)^2-(X+4)^2=05X^2-8X+2=0(X-2)(2X-9)=-6X(2X-1)=1-2X(2X-5)^2-(X+4)^2=05X^2-8X+2=0(X-2

X(2X-1)=1-2X(2X-5)^2-(X+4)^2=05X^2-8X+2=0(X-2) (2X-9)=-6
X(2X-1)=1-2X
(2X-5)^2-(X+4)^2=0
5X^2-8X+2=0
(X-2) (2X-9)=-6

X(2X-1)=1-2X(2X-5)^2-(X+4)^2=05X^2-8X+2=0(X-2) (2X-9)=-6
X(2X-1)=1-2X
2x的平方-x+2x-1=0
2x的平方+x=1
x的平方+x/2=1/2
(x+1/4)=+/-根号3/4
x1=(2根号3-1)/4 x2=-【(2根号3-1)/4】
(2X-5)^2-(X+4)^2=0
4x^2-20x+25-x^2-8x-16=0
x1 =1/3 x2 =9
5X^2-8X+2=0
判变式:2根号6
x1=4+根号6)/5 x2=(4-根号6)/5
(X-2) (2X-9)=-6
判变式小于0
所以原方程无实数解
我打了好久

1.2xx-x=1-2x 2xx+x-1=0 (2x+1)(x-1)=0 解得x1=-1/2 x2=1
2.打这个太麻烦了 你自己算算 很简单

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