Why does the multiplication sign look like an x???

The multiplication sign looks like a lowercase "x" because it is essentially a stylized version of the letter "x," which is why it's often used as a multiplication symbol, particularly in early math education; however, in more advanced mathematics, especially when dealing with variables represented by "x," a different multiplication symbol like a dot (.) is often preferred to avoid confusion.

The multiplication sign, denoted by a cross or a times symbol (×), has its origins in ancient mathematics. In the 15th century, the German mathematician Johann Widmannstetter used a cross (×) to represent multiplication in his book "Opus palmarium". This notation was later adopted by other mathematicians, including the French mathematician François Viète, who used it to distinguish multiplication from addition and subtraction. The cross shape was likely chosen because it is a simple and distinct symbol that can be easily recognized, making it an efficient way to convey multiplication in mathematical expressions.