670 notes - Department of Mathematics

You have already seen the use of the multiplication symbol (x). Another way to indicate multiplication is a number or variable in front of parenthesis with no other symbol. For example: 6(2) = 6 x 2. a(b) = a x b. You will learn other symbols for multiplication later in the course. 4 (3 + 1) = 4 × 3 + 4 × 1 ................
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