Question

Nilai (mn^2 - 2m^2) - (m^3n)^3 untuk nilai m = -1 dan n = 2 adalah..
a.14
b.2
c.-2
d.-14
beserta penjelasannya!!

Answer 1

M = -1
n = 2

(mn^2 - 2m^2) - (m^3n)^3
= ( (-1) 2² - 2 (-1)² - ( (-1)³ 2 )³
= ( (-1) 4  - 2        - ( (-1) 2)³
= (    -4    - 2        - ( -2)³
= (        -6            - ( -8)
= (        -6            +  8 )
= 2  ← jawaban [b]


Ok ?