34*86+51*86+85*14
=86*(34+51)+85*14
=86*85+85*14
=85*(86+14)
=85*100
=8500
\(34\cdot86+51\cdot86+85\cdot14\)
\(=(34+51)\cdot(86+14)\)
\(=85\cdot100=8500\)
Chúc bạn học tốt
34.86+51.86+14.85
=85.34+85.51+14.85+34+51
=85.(1+34+51+14)
=85.100
=8500
chúc bạn học tốt nha
\(34.86+51.86+85.14\)
\(=86.\left(34+51\right)+85.14\)
\(=86.85+85.14\)
\(=85.\left(86+14\right)\)
\(=85.100\)
\(=8500\)
34*86+51*86+85*14
=2924+4386+1190
=7310+1190
=8400
tk mình nha bn
\(34.86+51.86+85.14\)
\(=86\left(34+51\right)+85.14\)
\(=85\left(86+14\right)\)
\(=85.100=8500\)
\(34\times86+51\times86+85\times14\)
\(=86\times\left(34+51\right)+85\times14\)
\(=86\times85+85\times14\)
\(=85\times\left(86+14\right)\)
\(=85\times100\)
\(=8500\)
\(34\times86+51\times86+85\times14\)
\(=86\times\left(34+51\right)+85\times14\)
\(=86\times85+85\times14\)
\(=85\times\left(84+14\right)\)
\(=85\times100\)
\(=8500\)
34x86+51x86+85x14
86x(34+51)+85x14
86x85+85x14
85x(86+14)
85x100
8500
