Giải thích các bước giải:
(7^108 x 50 -7^108) : 7^110
= [ 7^108 x (50-1) ] : 7^110
= [ 7^108 x 49] : 7^110
= ( 7^108 x 7^2) : 7^110
= 7^110 - 7^110
=1
Trả lời:
\(\left(7^{108}.50-7^{108}\right)\div7^{110}\)
\(=\left[7^{108}.\left(50-1\right)\right]\div7^{110}\)
\(=\left(7^{108}.49\right)\div7^{110}\)
\(=(7^{108}.7^2)\div7^{110}\)
\(=7^{110}\div7^{110}\)
\(=1\)
Hok tốt!
Good girl