Kira-kira Ada yang tau ga Cara Jalanya Gmn?

1)
⁴log2 + ⁴log8 = ⁴log(2×8) = ⁴log16 = ⁴log4²
= 2 x ⁴log4 = 2 x 1 = 2

7)
log 4 + log 25
= log ( 4 x 25 )
= log 100
= log 10²
= 2 x log 10
= 2 x 1
= 2

9)
log 5 + log 8 + log 25
= log ( 5 x 8 x 25 )
= log 1.000
= log 10³
= 3