\(A=4^4\cdot9^5=\left(2^2\right)^4\cdot\left(3^2\right)^5=2^8\cdot3^{10}\)

\(A=4^4\cdot9^5=2^8\cdot3^{10}\)

\(A=4^4\cdot9^5=\left(2^2\right)^4\cdot\left(3^2\right)^5=2^8\cdot3^{10}\)

\(A=4^4\cdot9^5\)

\(A=\left(2^2\right)^4\cdot\left(3^2\right)^5\)

\(A=2^{2\cdot4}\cdot3^{2\cdot5}\)

\(A=2^8\cdot3^{10}\)

=36 mũ 9 nhé

\(A=4^2\cdot6^3\)

\(A=\left(2^2\right)^2\cdot3^3\cdot2^3\)

\(A=2^4\cdot2^3\cdot3^3\)

\(A=2^{4+3}\cdot3^3\)

\(A=2^7\cdot3^3\)

Cứu tụi cũng k* biết làm bài này\(\)

A = 4².6.3

A = (2²)². 2.3.3

A = 2⁴.2.3²

A = 2⁵.3²

3¹⁰.2⁸

126 = 2.3².7

 126 = 2¹.3².7¹

⇒ a = 1; b = 2; c = 1

Vậy a + b + c = 1 + 2 + 1 = 4

a) \(144=12.12=2^2.3.2^2.3=2^4.3^2\)

\(420=60.7=2^2.3.5.7\)

b) \(60=4.15=2^2.3.5\)

\(132=4.33=2^2.3.11\)

c) \(60=4.15=2^2.3.5\)

\(90=18.5=2.3^2.5\)

d) \(220=20.11=2^2.5.11\)

\(240=8.30=2^3.2.3.5=2^4.3.5\)

\(300=3.100=3.10^2=2^2.3.5^2\)

e) \(12^3.8^5=\left(2^2.3\right)^3.\left(2^3\right)^5=2^6.3^3.2^{15}=2^{21}.3^3\)

f) \(10^{15}=\left(2.5\right)^{15}=2^{15}.5^{15}\)

a) 144 = 12 ^ 2 ; 420 = 2 ^ 2 . 3 . 5 . 7

b)60 = 2^2 . 3 . 5 ; 132 = 2^2 . 3. 11

c)90 = 2 . 3^2 . 5 

d) 220 = 2^2 . 5 . 11 ; 240 = 2^4 . 3 . 5 ; 300 = 2^2 . 3 . 5^2

e) 12^3 . 8^5 = 56623104 = 2^21 . 3^3

f) 10^15 mình chịu =))