Bentuk sederhana (-8/27)pangkat -2/3 adlh

Kelas 9 Matematika
Bab Akar dan Pangkat

^ = pangkat

(-8/27)^(-2/3)
= (-27/8)^(2/3)
= ((-3/2)³)^(2/3)
= (-3/2)²
= 9/4

[tex] {( \frac{ - 8}{27} )}^{ \frac{ - 2}{3} } \\ = {( \frac{ {( - 2)}^{3} }{ {3}^{3} }) }^{ \frac{ - 2}{3} } \\ = \frac{ { - 2}^{ - 2} }{ {3}^{ - 2} } \\ = \frac{ {3}^{2} }{ {( - 2)}^{2} } \\ = \frac{9}{4} [/tex]