(x2-x1)+ x1-x2/x1x2 =(x2-x1)-x2-x1/x1x2=(x2-x1)(1-1/x1x2)
(x2-x1)+ (x1-x2/x1x2) 怎样变形到(x2-x1)(1-1/x1x2)
1个回答
相关问题
-
√x2-√x1,如何变形后得x2-x1/√x1+√x2
-
x1-x2+(x2-x1)/2x1x2怎么到(x1-x2)(1-1/2x1x2) ?
-
变形:3/x2+1 - 3/x1+1怎么变成3 · (x1-x2) / (x1+1)·(x2+1)
-
阅读下面式子变形x^2+2x-3x=x^2+2x+1-4=(x+1)^2-2^2=(x+1+2)(x+1-2)=(x+3
-
求大神帮我数学变形哈!(x1^2+1/x1)-(x2^2+1/x2)怎么变出的(x1-x2)(x1+x2-1/x1x2)
-
下列变形中,错误的是:A . -x+1=0变形为x=1 B. x+1÷2=-x÷2变形为x+1=-x C.x-1÷2=x
-
方程x+1/x=2+1/2的解是x1=2,x2=1/2 把关于x的方程x的平方-x+1/x-1=a+1/a-1变形为x+
-
⑴(1/x+1)+(1/x^2-1)-(1/x-1)⑵(1/x+1)-﹙x+2/x^2-1﹚×﹙x^2-2x+1/x^2
-
x-2=x(x-2) 原方程可变形为 x-2-x(x-2)=0 (x-2)(1-x)=0 x-2=0,或1-x=0 X1
-
(x1-1分之x1)-(x2-1分之x2)怎么变形