Fallout New Vegas Saving the BoS from Mr .House?

I know in the quest(The House Always Wins,V) that Mr. House wants you to kill the Brotherhood of steel but in the Fallout game guide it says on page 94 on the completion stage "Inform Mr. House that you've negotiated peace with the Brotherhood of steel, or have destroyed their bunker" and it also says that on the first part of the quest"Journey to the strange, desolate, and windswept Hidden Valley, and enter the western bunker . You can kill the Brotherhood of steel(as Mr. House wants) or ally with them. The Brotherhood of steel would make a fine fighting force for the battle to come... if you can convince them!" So seeing that i think you CAN save the BoS from Mr. House but how! Can someone help. Thanks