1890﹣(75x﹣60x)÷2+60x=90x,
1890﹣7.5x+60x=90x,
1890﹣67.5x+67.5x=90x+67.5x,
&
I can see _____ book.
若2x+34=a0+a1x+a2x2+a3x3+a4x4,则a0+a2+a42-a1+a32的值为( )
2277 ____