Each term in the first bracket has to be multiplied by each term in the second bracket. One way to do this is to use a grid: The four terms cannot be simplified because each of the surds has a ...

Expressions with brackets that include surds, for example \(\sqrt{11}(2-\sqrt{3})\), can be multiplied out in a similar way to multiplying out algebraic expressions, \(\sqrt{11}(2-\sqrt{3}) ...