You scrambled up a Rubik's cube, and now you want to put it back in order. What sequence of moves should you make?

Save guides, add subjects and pick up where you left off with your BBC account. In most formulas, one variable is by itself on the left hand side (LHS) of the formula. This variable is the subject ...

A polynomial is a type of algebraic equation that involves variables raised to a non-negative power — for example, x² + 5x + ...