
Example: Expand (Ö3  Ö2)^{2}. Solution: The above problem in the form of (a  b)^{2} = a^{2}  2ab + b^{2}. Here a = Ö3 and b = Ö2, substitute these values in the above formula, we get, (Ö3  Ö2)^{2} = (Ö3)^{2}  2 Ö3 * Ö2 + (Ö2)^{2} = 3  2Ö6 + 2 = 5  2Ö6. Directions: Solve the following problems. Also write at least ten examples of your own. 