分式的乘除:4a+4b/5ab*15a²cb/a²-b² x²-4y²/x²+4x+4*x+2/3x²+6xyx²+1/x-6*x²+36/x³+x y²-x²/5x²-4xy÷x+y4a+4b/5ab*15a²cb/a²-b²x²-4y²/x²+4x+4*x+2/3x²+
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分式的乘除:4a+4b/5ab*15a²cb/a²-b² x²-4y²/x²+4x+4*x+2/3x²+6xyx²+1/x-6*x²+36/x³+x y²-x²/5x²-4xy÷x+y4a+4b/5ab*15a²cb/a²-b²x²-4y²/x²+4x+4*x+2/3x²+
分式的乘除:4a+4b/5ab*15a²cb/a²-b² x²-4y²/x²+4x+4*x+2/3x²+6xy
x²+1/x-6*x²+36/x³+x
y²-x²/5x²-4xy÷x+y
4a+4b/5ab*15a²cb/a²-b²
x²-4y²/x²+4x+4*x+2/3x²+6xy
x²+1/x-6*x²+36/x³+x
y²-x²/5x²-4xy÷x+y
分式的乘除:4a+4b/5ab*15a²cb/a²-b² x²-4y²/x²+4x+4*x+2/3x²+6xyx²+1/x-6*x²+36/x³+x y²-x²/5x²-4xy÷x+y4a+4b/5ab*15a²cb/a²-b²x²-4y²/x²+4x+4*x+2/3x²+
4a+4b/5ab*15a²cb/a²-b²=4(a+b)*3ac/(a-b)(a+b)=12ac/(a-b)
x²-4y²/x²+4x+4*x+2/3x²+6xy=(x-2y)(x+2y)/(x+2)²*(x+2)/3x(x+2y)=(x-2y)/3x(x+2)
x²+1/x-6*x²+36/x³+x= x²+1/x-6*x²+36/x(x²+1)=(x²+36)/x(x-6)
y²-x²/5x²-4xy÷x+y=- (x-y)(x+y)/(5x²-4xy)*1/(x+y)=- (x-y)/(5x²-4xy)
你说的是要化简因式吧