下列因式分解不正确的是( )
A.-2ab2+4a2b=2ab(-b+2a) | B.3m(a-b)-9n(b-a)=3(a-b)(m+3n) |
C.-5ab+15a2bx+25ab3y=-5ab(-3ax-5b2y) | D.3ay2-6ay-3a=3a(y2-2y-1) |
下列因式分解不正确的是( )
A.-2ab2+4a2b=2ab(-b+2a) | B.3m(a-b)-9n(b-a)=3(a-b)(m+3n) |
C.-5ab+15a2bx+25ab3y=-5ab(-3ax-5b2y) | D.3ay2-6ay-3a=3a(y2-2y-1) |
试题篮
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