X'2+3ax+2a'2-a-1=0怎么分解因式?

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X'2+3ax+2a'2-a-1=0怎么分解因式?
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X'2+3ax+2a'2-a-1=0怎么分解因式?
X'2+3ax+2a'2-a-1=0怎么分解因式?

X'2+3ax+2a'2-a-1=0怎么分解因式?
(x-a+1)(x-2a-1)=0

X'2+3ax+2a'2-a-1=0 X'2+3ax+(2a+1)(a-1)=0 [x+(2a+1)][x+(a-1)]=0 x1=-2a-1 x2=1-a