(9-xﾁ0ﾅ5分之xﾁ0ﾅ5+2x-3)ﾁ0ﾅ6×(-1-x分之x-3)因式分解
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(9-xﾁ0ﾅ5分之xﾁ0ﾅ5+2x-3)ﾁ0ﾅ6×(-1-x分之x-3)
=[(x^2+2x-3)/(9-x^2)]^3*[-(x-3)/(1-x)]
=[(x-1)(x+3)/(3-x)(3+x)]^3*[-(x-3)/(1-x)]
=[(x-1)/(3-x)]^3*[-(x-3)/(1-x)]
=-[(x-1)/(x-3)]^2
=[(x^2+2x-3)/(9-x^2)]^3*[-(x-3)/(1-x)]
=[(x-1)(x+3)/(3-x)(3+x)]^3*[-(x-3)/(1-x)]
=[(x-1)/(3-x)]^3*[-(x-3)/(1-x)]
=-[(x-1)/(x-3)]^2
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