Question

[Kim Ngọc Yên]

20^2+x=500

tim x

ai k minh minh k lai

Answer 1

[Conan]

\(20^2+x=500\)

              \(x=500-20^2\)

              \(x=500-400\)

               \(x=100\)

Answer 2

[Kim Ngọc Yên]

20^2+x=500

400+x=500

x=500-400

=100