\(8^5.16^2.32^4=2^{15}.2^8.2^{20}=2^{43}\)

\(27^5.81^9=3^{15}.3^{36}=3^{51}\)

\(64^3.256^2=2^{18}.2^{16}=2^{34}\)

\(125^3.75^2.105^4=5^9.3^2.5^4.3^4.5^4.7^4=3^6.5^{17}.7^4\)

64³ .256 ² = 2¹⁸ .2¹⁶ = 2^{34
là 643 chứ ạ}

Ta có: (-8).(-3)3.(+125)

= (-2)3 . (-3)3 . 53

= [(-2).(-3)]3.53 = 63 . 53

= (6.5)3 = 303

Ta có: 27.(-2)3.(-7).(+49)

= 33 . (-2)3 . (-7) . (-7)2

= 33 . (-2)3 . (-7)3 = [3 . (-2) . (-7)]3 = 423

(Lưu ý: 49 = (-7)) . (-7) = (-7)2

`a, 4.4.5.5.5=4^2 . 5^3`

`b, 2.2.2.2.3.3=2^4 . 3^2`

`c,3.3.3.7.7.7.7 = 3^3 .7^4`

`d,3.5.3.5.5 =3.3.5.5.5=3^2 .5^3`

`e, 6.6.6.6.3.3.2.2 = 6^4 . 3^2 .2^2`

\(a,=5^{40}\cdot5^{12}=5^{52}\\ b,=x^{7+4+3}=x^{14}\\ c,=\left(3\cdot4\right)^6=12^6\)

a) \(25^{20}.125^4=\left(5^2\right)^{20}.\left(5^3\right)^4=5^{40}.5^{12}=5^{40+12}=5^{52}\)

b) \(x^7.x^4.x^3=x^{7+4+3}=x^{14}\)

c) \(3^6.4^6=\left(3.4\right)^6=12^6\)

\(2^4\times3^4\)

@Cỏ

#Forever

= 2^4 . 3^4

Sai đeef, Viết gọn các tích sau bằng cách dùng lũy thừa

a)  \(7.7.7.7.7=7^5\)

b)  \(7.38.7.25=7^2.950\)

\(A=8^2\cdot32^4\\ =2^6\cdot2^{20}\\ =2^{26}\\ B=27^3\cdot9^4\cdot243\\ =3^9\cdot3^{12}\cdot3^5\\ =3^{26}\)

`A=8^2*32^4=(2^3)^2*(2^5)^4=2^6*2^20=2^26`

`B=27^3*9^4*243=(3^3)^3*(3^2)^4*3^5=3^9*3^8*3^5=3^22`

a) 9 . 9 . 9 . 9 . 9 = 9⁵

b) 10 . 10 . 10 . 10 = \(10^4\)

c) 5.5.5.25=5.5.5.5.5=\(5^5\)      

d) a.a.a.a.a.a=\(a^6\)

a) 9.9.9.9.9=9⁵                   b) 10. 10. 10. 10=10⁴

c) 5.5.5.25=5.5.5.5.5=5⁵                      d) a.a.a.a.a.a=a⁶