把一张对边互相平行的纸条(AC′//BD′)折成如图所示,EF是折痕,若折痕EF与一边的夹角∠EFB=32°,则∠AEG=____.
若xm=2,xn=3,则x2m−n=____.
(2x2﹣3x﹣1)(x+b)的计算结果不含x2项,则b的值为_____.
若3x+2y−2=0,则8x•4y等于____.
32019×(−)2018=____.
计算:2m2•(m2+n−1)=____.