8. Find the value of 14 x 14 + 2 x 14 x 86 + 86 x 86.

\(=\left(14\times3\right)+\left(86\times3\right)+2\)

\(=42+258+2\)

\(=300+2\)

\(=302\)

14 x 14 + 2 x 14 x 86 + 86 x 86 

= 14 x 14 + 14 x 86 + 14 x 86 + 86 x 86 

= 14 x ( 14 + 86 ) + 86 x ( 14 + 86 ) 

= 14 x 100 + 86 x 100 

= 100 x ( 14 + 86 ) 

= 100 x 100 

= 10000 

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

\(\text{36.( -14) (- 14).33 36.( 86) 67.( -14)}\)36.( -14) (- 14).33 36.( 86) 67.( -14)

\(=\left(-14\right).\left(33+67\right)+36.\left[\left(-14\right)+\left(-86\right)\right]\)\(=\left(-12\right)\)=  ( -14 ) . ( 33 + 67 ) + 36.[ ( -14 ) + ( - 86 ) ]

=   (-14 ) .100 + 36 .(-100)

=   -1400 + ( -3600 )

= - 5000

học tốt

100

\(100\)

100

=14-30-10+86

=100+20

=120

TL : 

=14-30-10+86

=100+20

=120

=-37*(86+14)

=-37*100

=-3700

\((-37).86+(-37).14\)

\(=(-37).(86+14)\)

\(=(-37).100\)

\(=-3700\)

Giúp mik với

14+|-122| -22-(-86)

= 14+122-22+86

=136-22+86

=200

\(14+\left|-122\right|-22-\left(-86\right)\)

\(=14+122-22+86\)

\(=\left(14+86\right)+\left(122-22\right)\)

\(=100+100=200\)

~ Học tốt@@

# Chiyuki Fujito

14+16+86+84

=(14+86)+(16+84)
=100+100

=200

14+16+86+84

=(14+86)+(16+84)

=100+100

=100x2

=200

ket qua = 200