计算:2(3+1)(3^2+1)(3^4+1)……(3^32+1)+1
2(3+1)(3^2 +1)(3^4 +1)(3^8 +1).....(3^32 +1)+1.
2(3+1)(3^2 +1)(3^4 +1)(3^8 +1).....(3^32+1)+1
=(3-1)(3+1)(3^2 +1)(3^4 +1).....(3^32+1)+1
=(3^2-1)(3^2+1)(3^4+1).....(3^32+1)+1
=(3^4-1)(3^4+1)(3^8+1).....(3^32+1)+1
=.....
=3^64-1+1
=3^64