(x方+4/x-4)/(x方-4/x方+2x)
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(x方+4/x-4)/(x方-4/x方+2x)
(x方+4/x-4)/(x方-4/x方+2x)
(x方+4/x-4)/(x方-4/x方+2x)
4)(x+1)/(x+1)平方 + 1/(x-1)
=(x-4)/(x+1)(x-1) 乘以 (x+1)平方/(x-4)(x+1) + 1/(x-1)
=(x-4)/(x+1)(x-1) 乘以 (x+1)/(x-4) + 1/(x-1)
=1/(x-1)+1/(x-1)
=2/(x-1)
因式分解:(x方+y方)-4x方y方?
4(X方+3X+1)方-(X方+X-4)方-(X方+5X+6)方因式分解
(x方+1)方-4x方,因式分解
(x方+4)方-16x方 因式分解
x方-4x+4
4x方-20x
4x-x方-5
x方-xy+1/4y方
x方-2x分之x方-4x+4除以x分之x方-4
因式分解:(x-y)方-4(x方-y方)+4(x+y)方
x方-4x+3=(x- )方-1
(x方+4/x-4)/(x方-4/x方+2x)
8/(x方+x)+2/(x方-x)=4/(x方-1)
因式分解(x方+y方)(x方+y方-4)+4
(9x方-4y方)(9x方-4y方)
(x方y方+1)的平方-4x方y方
解(x方+y方)的平方-4x方y方
解方程:9(x方-1)方=4(x方+1)方