Question

2020 nhân 2019 trừ 1 phần 2018 nhân 2020 cộng 2019

Answer 1

2020x2019-1/2018x2020+2019=8238329618

Answer 2

\(\frac{2020.2019-1}{2018.2020+2019}\)

= \(\frac{2020.\left(2018+1\right)-1}{2018.2020+2019}\)

= \(\frac{2020.2018+2020-1}{2018.2020+2019}\)

= \(\frac{2020.2018+2019}{2018.2020+2019}\)

= \(1\)

Chúc bạn học tốt !!!!!

Rất vui vì giúp được bạn !!