👤

Sagot :

EPHTAMINA890

Ex47

A)5^2×5^4

=5^(2+4)

=5^6

B)6^5×6^(-8)

=6^(5-8)

=6^(-3)

C)3^4×5^4

=(3×5)^4

=15^4

D)2,5^(-7)×4,2^(-7)

=(2,5×4,2)^(-7)

=10,5^(-7)

E)-4×(-4)^7

=-4^(7+1)

=-4^8

F=(-2)^(-3)×(-2)^5

=(-2)^(-3+5)

=(-2)^2

Ex48

A)(3^8)/(3^(-4))

=3^(8-(-4))

=3^(8+4)

=3^12

B)(6^5)/(3^5)

=(6÷3)^5

=2^5

C)(4^6)/(4^2)

=4^(6-2)

=4^4

D)(-4,5^4)/(3^4)

=(-4,5÷3)^4

=-1,5^4

E)(9^-3)/(-2,5^-3)

=-(9÷2,5)^(-3)

=-3,6^(-3)

F=(3,2^-5)/(3,2^-2)

=3,2^(-5-(-2))

=3,2^(-5+2)

=3,2^3

Other Questions

© 2024 IDNLearn. All rights reserved.