因式分解数学
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abx²-4abx+4ab
=ab(x²-4x+4)
=ab(x-2)²
-8ax²+18ay²
=2a(9y²-4x²)
=2a(3y-2x)(3y+2x)
x^4-3x²+2
=(x²-1)(x²-2)
=(x-1)(x+1)(x²-2)
2a²-2b²+3a-3b
=2(a²-b²)+3(a-b)
=2(a-b)(a+b)+3(a-b)
=(a-b)(2a-2b+3)
=ab(x²-4x+4)
=ab(x-2)²
-8ax²+18ay²
=2a(9y²-4x²)
=2a(3y-2x)(3y+2x)
x^4-3x²+2
=(x²-1)(x²-2)
=(x-1)(x+1)(x²-2)
2a²-2b²+3a-3b
=2(a²-b²)+3(a-b)
=2(a-b)(a+b)+3(a-b)
=(a-b)(2a-2b+3)
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