This includes simplifying exponents, parentheses, fractions, multiplied results, rationalizing the denominator, and combining like terms - as well as using all the properties of numbers: associative, distributive, commutative, etc. 11/12: Sorry I couldn't be at school today. I miss you all! Please complete the assignment below called Solving Two Step Equations Practice. Also, get IXL R.9 to a 90 (100 for extra credit on your quiz)! Remember, you still have a quiz tomorrow on simplifying expressions! I know you will all do great :) Weekly Math is also do. You can simplify polynomials by using grouping and combining like terms. If the terms have exactly the same variables to like powers, you can combine them to simplify the expressions. Look at the following expression: x = 1x. x + x = 2x. x + x + x = 3x. The numbers 1, 2, and 3 are coefficients of x.