Save guides, add subjects and pick up where you left off with your BBC account. In algebra, letters are used to stand for values that can change (variables) or for values that are not known ...

Mathematicians have devised a new way to solve higher-order polynomial equations, ushering in a 'dramatic revision of a basic ...

A mathematician has built an algebraic solution to an equation that was once believed impossible to solve. A UNSW Sydney mathematician has discovered a new method to tackle algebra's oldest challenge ...

The remaining unknown can then be calculated. In this example both equations have \(+y\) A way to remember this is same signs subtract, different signs add. Calculate the value of the remaining ...