Question

Tính nhanh : 2003² – 3²

Answer 1

\(2003^2-3^2=\left(2003-3\right)\left(2003+3\right)=2000.2006=4012000\)

Answer 2

\(2003^2-3^2=\left(2003-3\right)\left(2003+3\right)=2000\cdot2006=2\cdot1000\cdot2006=4012000\)

Answer 3

Answer 4

2003^2−3^2=(2003−3)(2003+3)=2000.2006=4012000

học tốt nha bn