2x(x-12)+22 3(a-2b)^4-39(a-2b)^2+108 x^2-10xy+25y^2-6x+30y+8
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2x(x-12)+22 3(a-2b)^4-39(a-2b)^2+108 x^2-10xy+25y^2-6x+30y+8 这三提因式分解 要过程 急~~~
2x(x-12)+22
=2x²-24x+22
=2(x²-12x+11)
=2(x-1)(x-11)
3(a-2b)^4-39(a-2b)^2+108
=3[(a-2b)^4-13(a-2b)²+36]
=3[(a-2b)²-4][(a-2b)²-9]
=3(a-2b+2)(a-2b-2)(a-2b+3)(a-2b-3)
x^2-10xy+25y^2-6x+30y+8
=(x-5y)²-6(x-5y)+8
=(x-5y-2)(x-5y-4)
=2x²-24x+22
=2(x²-12x+11)
=2(x-1)(x-11)
3(a-2b)^4-39(a-2b)^2+108
=3[(a-2b)^4-13(a-2b)²+36]
=3[(a-2b)²-4][(a-2b)²-9]
=3(a-2b+2)(a-2b-2)(a-2b+3)(a-2b-3)
x^2-10xy+25y^2-6x+30y+8
=(x-5y)²-6(x-5y)+8
=(x-5y-2)(x-5y-4)
3a-3b/10ab*25a^b3/a^-b^= x^-4y^/x^+2xy+y^/x+2y/2x^+2xy
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