Tentukan nilai tersebut

Tentukan nilai tersebut

Jawaban Terkonfirmasi

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

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}