tolong kak no 2 dan 3 kayak gmana pleaseee..

jawab

(2)
⁵log 288 = ⁵log (2³ 6²)
= ⁵log 2³ + ⁵log 6²
= 3 . ⁵log 2 + 2 ⁵log 6
= 3 x + 2 y

(3)
2x + y = 11
x+ y = 7 ....(-)
x = 4

x  + y = 7
4 + y = 7
y = 3

nilai  2( x- y) = 2(4 -3) = 2