1ï¼è¥a=-0.2,b=0.5,代æ°å¼-(|a2b|-|ab2|)çå¼ä¸º______ï¼
2ï¼ä¸ä¸ªå¤é¡¹å¼åå»3m4-m3-2m+5å¾-2m4-3m3-2m2-1,é£ä¹è¿ä¸ªå¤é¡¹å¼çäº______ï¼
3ï¼-(2x2-y2)-[2y2-(x2+2xy)]=______ï¼
4ï¼è¥-3a3b2ä¸5ax-1by+2æ¯å类项,åx=______,y=______ï¼
5ï¼(-y+6+3y4-y3)-(2y2-3y3+y4-7)ï¼______ï¼
6ï¼åç®ä»£æ°å¼4x2-[7x2-5x-3(1-2x+x2)]çç»ææ¯______ï¼
7ï¼2a-b2+c-d3=2a+( )-d3=2a-d3-( )=c-( )ï¼
8ï¼3a-(2a-3b)+3(a-2b)-b=______ï¼
9ï¼åç®ä»£æ°å¼x-[y-2x-(x+y)]çäº______ï¼
10ï¼[5a2+( )a-7]+[( )a2-4a+( )]=a2+2a+1ï¼
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