121(x-y)^2-36(x+y)^2因式分解
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121(x-y)^2-36(x+y)^2因式分解121(x-y)^2-36(x+y)^2因式分解121(x-y)^2-36(x+y)^2因式分解121（x-y)＾2－36(x+y)＾2=[11(x-y
121(x-y)^2-36(x+y)^2因式分解
121(x-y)^2-36(x+y)^2因式分解
121(x-y)^2-36(x+y)^2因式分解
121（x-y)＾2－36(x+y)＾2
=[11(x-y)+6(x+y)][11(x-y)-6(x+y)]
=（11x-11y+6x+6y)(11x-11y-6X-6y)
=(17x-5y)(5x-17y)
121(x-y)^2-36(x+y)^2
=【11（x-y)】²-【6（x+y）】²
=（11x-11y+6x+6y)(11x-11y-6X-6y)
=(17x-5y)(5x-17y)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
化简y(x+y)+(x+y)(x-y)-x^2
(x-y)^2+12(x-y)+36
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【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
因式分解x(x+y)(x-y)-x(x+y)^2
121(x-y)^2-36(x+y)^2因式分解
因式分解(x+y)^2y^2-12(x+y)y^2+36y^2-y^4
[(x-y)^2-(x+2y)(x-2y)]/y
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
x^2(x-y)+(y-x)
x(x-y)2-(y-x)3
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[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
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计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x