题目内容
=________.
若a>0,b>0,c<0,则abc________0,ab-c________0,ac-b________0.
(1) =________;
(2) =________;
(3) =________;
(4) =________;
(5) =________;
(6) =________.
你吃过“拉面”吗?如果把一团面拉开,然后对折,再拉开,再对折,如此往复下去,对折8次,会拉出____________根面条.
绝对值大于2而小于5的所有整数的和为________,积为________.
关于x的多项式是二次三项式,则a=________,m=________;当x=-2时,该二次三项式的值为________.
________.