(2+1)(22+1)(24+1)
=(2﹣1)(2+1)(22+1)(24+1)
=(22﹣1)(22+1)(24+1)
=(24﹣1)(24+1)
=28﹣1
化简:(3+1)(32+1)(34+1)(38+1)=.
;该等式从左到右的变形,不仅保持了结构的对称性,还体现了数学的和谐、简洁美.