MAT 108 Lecture Notes - Algebraic Expression
Document Summary
Algebraic expressions are the equations we get when operations along with subtraction, addition, multiplication, division and many others. Samuel and simon were playing with matchsticks and thought of forming number patterns using them. James took eight [8] matchsticks and formed number the eight [8]. Simon added three[3] more matchsticks to form a pattern with two 8"s. They realized that they can keep on adding three [3] matchsticks in each round to make one extra eight . From this, they concluded that they need 8+ 3[n-1] sticks, in general pattern with n number 8"s. Here, 8+ 3[n-1] is called an algebraic expression. Use 2 to open the bracket by multiplying it by the numbers in the bracket. We had +6 because when negative [-] crosses equal sign [=], it becomes positive.
