1. Sederhanakan perpangkatan berikut ini.

Jawaban:

4⁶ x 4³

Jawab: 4⁹

b. (-7)³ x (-7)²

Jawab: (-7)⁵

c. 4(-2,5)⁴ x (-2,5)³

Jawab: 4(-2,5)⁷

d. (5²)³

Jawab: 5⁶

e. 5² x (2/5)³ x (2/5)⁵

Jawab: 4(

Pembahasan

a. 4⁶ x 4³

= 4⁶⁺³

= 4⁹

b. (-7)³ x (-7)²

= (-7)³⁺²

= (-7)⁵

c. 4(-2,5)⁴ x (-2,5)³

= 4(-2,5)⁴⁺³

= 4(-2,5)⁷

d. (5²)³

= 5²ˣ³

= 5⁶

e. 5² x ()³ x ()⁵

= 5² x (³⁺⁵

= 5² x

=

=

= 4(

Ingat Sifat-sifat perpangkatan

aᵇ x aⁿ = aᵇ⁺ⁿ

aᵇ : aⁿ = aᵇ⁻ⁿ

( aᵇ)ⁿ = a ᵇ ˣ ⁿ

(a/b)ⁿ = aⁿ/ bⁿ

a ⁻ⁿ = 1 / aⁿ

(ab)ⁿ = aⁿ x bⁿ