Question

Tính nhanh 199 mũ 2

Answer 1

\(199^2=39601\)

Answer 2

\(199^2=\left(200-1\right)^2=200^2-2.200+1=40000-400+1=39601\)

Answer 3

\(199^2=\left(200-1\right)^2=200^2-2\cdot200+1=40000-400+1=39601\)

Answer 4

199²=(200-1)²=200²-2.200.1+1²= 40000-400+1= 39601

Hoctot

Answer 5

199² = (200 - 1)² = 40000 - 400

Answer 6

199² = (200 - 1)² = 40000 - 400 + 1 = 39601

 

Answer 7

\(199^2=\left(200-1\right)^2=39601\)