Blackstone Inc. is acquiring a majority stake in NetBrain Technologies Inc. in a fresh bet that artificial intelligence will transform the $30 billion network operations solutions market.Blackstone’s growth arm is making a significant growth investment in Burlington, Massachusetts-based NetBrain in a transaction that values the company at $750 million, according to a statement reviewed by Bloomberg News. NetBrain will use the investment to expand its global footprint and scale its AI-powered pla...