Объяснение:
2log1/5 10 - log1/5 28 + 3/2log1/5 ∛49=log1/5 10² - log1/5 28 + log1/5 (7²)^(1/3)^(3/2)=log1/5 100 - log1/5 28 + log1/5 7=log1/5 100×7/28=log1/5 25=-2
log2 (8a)=log2 8+log2 a=3+14=17
Объяснение:
2log1/5 10 - log1/5 28 + 3/2log1/5 ∛49=log1/5 10² - log1/5 28 + log1/5 (7²)^(1/3)^(3/2)=log1/5 100 - log1/5 28 + log1/5 7=log1/5 100×7/28=log1/5 25=-2
log2 (8a)=log2 8+log2 a=3+14=17