把下列各式分解因式: (1)x^y^-2xy+1 (2)9-12t+4t^把下列各式分解因式:(1)x^y^-2xy+1 (2)9-12t+4t^(3)y^+y+1/4 (4)25m^-80m+64(5)x^/4+xy+y^ (6)a^b^-4ab+46个小题求解了,注:^为平方
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![把下列各式分解因式: (1)x^y^-2xy+1 (2)9-12t+4t^把下列各式分解因式:(1)x^y^-2xy+1 (2)9-12t+4t^(3)y^+y+1/4 (4)25m^-80m+64(5)x^/4+xy+y^ (6)a^b^-4ab+46个小题求解了,注:^为平方](/uploads/image/z/7100205-69-5.jpg?t=%E6%8A%8A%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A+%281%29x%5Ey%5E-2xy%2B1+%282%299-12t%2B4t%5E%E6%8A%8A%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A%281%29x%5Ey%5E-2xy%2B1++++++++++++++%282%299-12t%2B4t%5E%283%29y%5E%2By%2B1%2F4++++++++++++++++++%284%2925m%5E-80m%2B64%285%29x%5E%2F4%2Bxy%2By%5E+++++++++++++++%286%29a%5Eb%5E-4ab%2B46%E4%B8%AA%E5%B0%8F%E9%A2%98%E6%B1%82%E8%A7%A3%E4%BA%86%2C%E6%B3%A8%EF%BC%9A%5E%E4%B8%BA%E5%B9%B3%E6%96%B9)
把下列各式分解因式: (1)x^y^-2xy+1 (2)9-12t+4t^把下列各式分解因式:(1)x^y^-2xy+1 (2)9-12t+4t^(3)y^+y+1/4 (4)25m^-80m+64(5)x^/4+xy+y^ (6)a^b^-4ab+46个小题求解了,注:^为平方
把下列各式分解因式: (1)x^y^-2xy+1 (2)9-12t+4t^
把下列各式分解因式:
(1)x^y^-2xy+1 (2)9-12t+4t^
(3)y^+y+1/4 (4)25m^-80m+64
(5)x^/4+xy+y^ (6)a^b^-4ab+4
6个小题求解了,注:^为平方
把下列各式分解因式: (1)x^y^-2xy+1 (2)9-12t+4t^把下列各式分解因式:(1)x^y^-2xy+1 (2)9-12t+4t^(3)y^+y+1/4 (4)25m^-80m+64(5)x^/4+xy+y^ (6)a^b^-4ab+46个小题求解了,注:^为平方
(1)x^y^-2xy+1=(xy-1)²
(2)9-12t+4t^=(3-2t)²
(3)y^+y+1/4=(y+1/2)²
(4)25m^-80m+64=(5m)²-2×5m×8+8²=(5m-8)²
(5)x^/4+xy+y^=(x/2+y)²
(6)a^b^-4ab+4=(ab-2)²
x^y^-2xy+1
=(xy-1)(xy-1)
9-12t+4t^
=(3-2t)(3-2t)
y^+y+1/4
=(y+1/2)(y+1/2)
25m^-80m+64
=(5-8m)(5-8m)
x^/4+xy+y^
=(x/2+y)(x/2+y)
a^b^-4ab+4
=(ab-2)(ab-2)