(3+1)(3的平方+1)(3的四次方+1)(3的八次方+1)(3的十六次方+1)是多少?

只能用平方差公式
2025-01-06 02:14:22
推荐回答(2个)
回答1:

原式=(3-1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)/2=(3^32-1)/2

回答2:

原式=(3-1)(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)/(3-1)
=(3^2-1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)/(3-1)
=(3^4-1)(3^4+1)(3^8+1)(3^16+1)/(3-1)
=(3^8-1)(3^8+1)(3^16+1)/(3-1)
=(3^16-1)(3^16+1)/(3-1)
=(3^32-1)/2