\(\dfrac{36^4\cdot125}{2^8\cdot5^4\cdot3^6}=\dfrac{2^8\cdot3^8\cdot5^3}{2^8\cdot5^4\cdot3^6}=3^2\cdot\dfrac{1}{5}=\dfrac{9}{5}\)

= ( 2^2 . 3^2)^4 . 5 ^ 3 / 2^8.5^4.3^6

= 2^8 . 3^8 . 5^3 / 2^8 . 5^4 . 3^6

=3^2/5

= 9/5

Chúc bạn học tốt ^^ !!

\(\approx6,8\)

= 3.14 x ( 2.6 + 7.4 )

= 3.14 x 10

= 31.4

3,14 x 2,6 + 3,14 x 7,4

= 3,14 x ( 2,6 + 7,4)

= 3,14 x 10

= 31,4

ủng hộ tớ nha

3,14  x 2,6 + 3,14 x 7,4 =

3,14 x (2,6 + 7,4)         =

3,14 x     10                 = 31,4

.(5.3^11+4.3^12):(3^9.5^2-3^9.2^3)

=(5.3^11+4.3^12):(3^9.5^2-3^9.2^3)

=(5.3^11+4.3^11.3):[3^9.(5^2-2^3)]

=(5.3^11+12.3^11):[3^9.17]

=3^11.(5+12):(3^9.17)

=(3^11.17):(3^9.17)

=17.(3^11:3^9)

=17.3^2

=17.9

=153

tk nha

bai cua kacura dung nhung 4 dong cuoi la sai to

co khong co kieu phan phoi nhu vay ma phai thay la 3^11:3^9( nhan 17 chia 17 thi khi nao cung nhan duoc ket qua giong nhau)

                                                                           =3^2=9

Vậy được HSG em hi

a. 4.52.5.25.2

=(4.25).(5.2).52

=100.10.52

=1000.52

=52000

b. 2.3² + 4.3²

=3² . (2+4)

=9.6

=54

a)4.52.5.25.2

=(4.25).(5.2).52

=100.10.52

=52000

b)2.3²+4.3³

=2.3²+4.3³

=18+108

=126

a, 4.52.5.25.2

= ( 4.25 ) . (5.2).2

=100 . 10 .52

=52000

b, 2.3²  + 4.3³

=(2+4).3²

=9.6

=54