Simplify the expression to a polynomial in standard form:
(2x+1)(x^2-6x+7) (2x+1)(x 2 −6x+7)

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.