Which of the following are propositions? Give the truth value of each proposition.(a) What time is dinner?(b) It is not the case that 5 + is not a rational number. (c)x/2 is a rational number.(d)2x + 3y is a real number.(e) Either 3 + is rational or 3 is rational. (f) Either 2 is rational and is irrational, or 2 is rational.(g) Either 5 is rational and 4.9 is rational, or 3 is rational.(h) is rational, and either or(i) It is not the case that 39 is prime, or that 64 is a power of 2.(j) There are more than three false statements in this book and this statementis one of them.

Math121 Chapter 2 Notes Lesson 2.4 – Higher Degree Polynomial Equations Example 1. 3 2 5x + 5x = 10x (First, subtract 10x from both sides.) 5x + 5x – 10x = 0 (Now, we can factor out an “x” from each term on the left side of the20.) x (5x + 5x -10) = 0 (This basically gives us a quadratic equation that we can factor out like normal. Just, this time, “x” will equal three different things, instead of just 2 like it always was in the last lesson.) x (5x – 5) (x + 2)