"extends the power" is a correct phrase that can be used in written English.
You can use it when talking about extending a person's or thing's power over an area, concept, or activity. For example, "The new law extends the power of the city council over zoning decisions."
The national-security state tends to love monopolies — a coöperative monopoly augments and extends the power of the state, like a technological prosthesis.
More than any other director he tests and extends the power of pop-culture fantasy to engage the painful atrocities of history.
This tighter coupling between HootSuite and its integrated apps extends the power of both".
Impressed by Scotus' dictum, 'Deus nullius est debitor' (God is indebted to no one), Ockham extends the power of God to reformulate all moral laws.
The ruling also extends the power of the U.S. Federal Communications Commission and opens up the possibility of extensive deregulation in the telecommunications world.
"It builds on and extends the power of the Bing, Microsoft Azure, Office 365 and Windows platforms to empower developers everywhere," Ku simply writes.
The pact extends the power-sharing through the ministerial level, giving the RCD and the Ugandan-backed Movement for Congolese Liberandon (MLC) and the political opposition one vice president and seven ministerial posts each.
It also extends the powers of the justice ministry both to shape the charges brought against defendants and to take disciplinary steps against prosecutors.
Based on ideas similar to those that led to the development of the power-law formalism, Sorribas et al. [ 23] proposed a new Saturable and Cooperative (SC) formalism, that extends the power-law representation to include cooperativity and saturation.
"There is a question as to whether the Congress extended the power of the military too far".
"It's a total fraud that will extend the power of monopolists rather than promote competition," he said.
