nilai dari 5log8 - 5log50 + 5log4 - 5log16

(ingat rumus logaritma jika xlogab = xloga + xlogb
= 5log2³ - (5log5 + 5log5 + 5log2) + 5log2² - 5log2⁴
= 3. 5log2 - (1+ 1+ 5log2) + 2. 5log2 - 4. 5log2
= 3. 5log2 -2 - 5log2 + 2. 5log2 - 4. 5log2
= 5log2 (3-1+2-4) -2
= 5log2. 0 -2
= 0 - 2
= -2

semoga membantu :)))