tentukan nilai tersebut

31.)
[tex] {}^{2} log(36) + {}^{2} log(8) - {}^{2} log(9) \\ = {}^{2} log( \frac{36 \times 8}{9} ) \\ = {}^{2} log(4 \times 8) \\ = {}^{2} log(32) \\ = {}^{2} log(2 {}^{5} ) \\ = 5 log(2 {}^{2} ) \\ = 5 \times 1 \\ = 5 [/tex]

32.) |x+3| - |2x| = 0
|x+3| - 2|x| = 0
|x+3| = 2|x|

☞ x+3 = 2x
x-2x = -3
-x = -3
x = 3
☞ x + 3 = -2x
x + 2x = -3
3x = -3
x = -1

HP : {-1 , 3}