\(25.5.20.4+5.8.25.40\)
\(=\left(25.4\right).\left(5.20\right)+\left(5.40\right).\left(8.25\right)\)
\(=100.100+200.200\)
\(=10000+40000\)
\(=50000\)
k mk nha
=25.5.20.4 + 25.5.20.4.4
=25.5.20.4.5
=100.100.5
=50000
25 x 4 x 20 x 5 + 8 x 25 x 5 x 40
= 100 x 100 + 200 x 200
= 10000 + 40000
= 50000
\(\left(25\cdot4\right)\cdot\left(5\cdot4\right)+\left(25\cdot40\right)\cdot\left(5\cdot8\right)\)
\(\left(100\cdot20\right)+\left(1000\cdot40\right)\)
\(2000+40000\)
\(42000\)
