1052-52=(105-5).(105+5)=100.110=11000
k mik nha bn!
1052-52=(105-5)(105+5)
=100. 110
= 11 000
\(105^2-5^2\)
\(=\left(105-5\right)\left(105+5\right)\)
\(=100.110\)
\(=11000\)
105^2 - 5^2 = (105-5)(105+5) = 100*110 = 11000
đúng thì
ta có
1052 = 11025
52 = 25
11025 - 25 =11000