ï¼1ï¼åå¼
=y(x+a-b)
ï¼2ï¼åå¼
=2x(x+3)
ï¼3ï¼åå¼
=2y²(x²-2z)
ï¼4ï¼åå¼
=(a+5)(a-5)
ï¼8ï¼åå¼
=3a(a-b)
ï¼9ï¼åå¼
=(3m+2n)(3m-2n)
ï¼10ï¼åå¼
=(a-1)²
ï¼11ï¼åå¼
=(m-3)²
ï¼15ï¼åå¼
=3x(1-4x²)
=3x(1+2x)(1-2x)
ï¼16ï¼åå¼
=x(x-3)²
ï¼17ï¼åå¼
=(a-2)(m²-m)
=(a-2)(m-1)mæ¥èªï¼æ±å©å¾å°çåç
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