1/2x and expect you to know which one I meant with no additional context or brackets
By the definition of Terms, ab=(axb), so you most certainly can write that (and Maths textbooks do write that).
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
^other^ ^rules^
By the definition of Terms, ab=(axb), so you most certainly can write that (and Maths textbooks do write that).