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

2 × x

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.