(2a根号3ab²)-(b/6根号27a³)-(6ab根号a/3)(b≥0)
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![(2a根号3ab²)-(b/6根号27a³)-(6ab根号a/3)(b≥0)](/uploads/image/z/1241831-47-1.jpg?t=%EF%BC%882a%E6%A0%B9%E5%8F%B73ab%26%23178%3B%EF%BC%89-%EF%BC%88b%2F6%E6%A0%B9%E5%8F%B727a%26%23179%3B%EF%BC%89-%EF%BC%886ab%E6%A0%B9%E5%8F%B7a%2F3%EF%BC%89%EF%BC%88b%E2%89%A50%EF%BC%89)
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(2a根号3ab²)-(b/6根号27a³)-(6ab根号a/3)(b≥0)
(2a根号3ab²)-(b/6根号27a³)-(6ab根号a/3)(b≥0)
(2a根号3ab²)-(b/6根号27a³)-(6ab根号a/3)(b≥0)
2a根号(3ab²)-(b/6)根号(27a³)- 6ab根号(a/3)
=2根号3*ab根号a - (1/2)*ab根号a - 2根号3*ab根号a
=- (1/2)*ab根号a