Multiplication sign (x) is used in algebraic equations

Explanation

Since the letter x is often used in algebra and could be confused with the multiplication symbol, we usually write multiplication using a raised dot or parentheses. When multiplying a variable by a number, or a variable by another variable, we can omit the symbol for multiplication. For example,

2b means 2 ^. b                   xy means x ^. y                  8abc means 8 ^. a ^. b ^. c