MATH 0240 Midterm: MATH 240 AlgebraReview-24
Document Summary
Re v ie w o f a lg e b r a. Here we review the basic rules and procedures of algebra that you need to know in order to be successful in calculus. The real numbers have the following properties: a b b a ab ba. A b c a b c a b c ab ac (commutative law) In particular, putting a 1 in the distributive law, we get. B c 1 b c 1 b 1 c and so. 2t 7x 2tx 11 14tx 4t 2x 22t. 4 3 x 2 4 3x 6 10 3x. If we use the distributive law three times, we get. A b c d a b c a b d ac bc ad bd. This says that we multiply two factors by multiplying each term in one factor by each term in the other factor and adding the products. In the case where c a and d b.
