
因式分解:(1) 12a²b(x-y)³-4ab(y-x)² (2) (a²-4a)²+(3a-12)²
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(1)
12a²b(x-y)³-4ab(y-x)²
=4ab(x-y)²(3ax-3ay-1)
(2)
(a²-4a)²+(3a-12)²
=a²(a-4)²+9(a-4供担垛杆艹访讹诗番涧)²
=(a-4)²(a²+9)
12a²b(x-y)³-4ab(y-x)²
=4ab(x-y)²(3ax-3ay-1)
(2)
(a²-4a)²+(3a-12)²
=a²(a-4)²+9(a-4供担垛杆艹访讹诗番涧)²
=(a-4)²(a²+9)
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