Algebra crossword

2. having the shape of a capital "U" or resembling a broad U in cross-profile
4. place you eat dinner
6. the absolute highest
7. a financial transaction and a type of debtor finance in which a business sells its accounts receivable to a third party at a discount
11. something invariable or unchanging
14. an equation or inequality has no solutions that are real numbers
15. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
16. number that means nothing
17. an algebraic expression that has three non-zero terms and has more than one variable in the expression
18. give the different forms of as they vary according to voice, mood, tense, number, and person
20. there's only one value for the variable that makes the equation true, and that value is a real number, not a complex or imaginary number

1. a curve in which every point on the curve is equidistant from a point called a focus and a straight line called a directrix
3. the point of a figure that is opposite to and farthest from its base
5. Squaring a binomial means multiplying the binomial by itself, resulting in a perfect square trinomial
8. relating to or affecting the fundamental nature of something far reaching or thorough
9. very thin sheet metal
10. one number that gives another specific number as a result when you multiply it by itself
12. the equation has two distinct real numbers that, when substituted for the variable, satisfy the equation and are represented by the graph crossing the x-axis twice
13. under a tree in the ground
19. the absolute lowest