Question

Which of the following is not a correct way to show multiplication in algebra?

2x
(2)(x )
2 · x
2 × x

Answer 1

Answer: the last one you dont use xs anymore it'll mess you up.

Answer 2

Answer:

2 × x

Step-by-step explanation:

2 × x is incorrect; there's too much potential for confusion when you use both ×  and  x in the same expression or equation.  Please use x only as a variable.  

2 · x is acceptable, as the dot clearly calls for multiplication.