Expand (Ö5 + Ö3)2.
The above problem in the form of (a+b)2 = a2 + 2ab + b2.
Here a = Ö5 and b = Ö3, substitute these values in the above formula, we get,
(Ö5 + Ö3)2 = (Ö5)2 + 2Ö5*Ö3 + (Ö3)2
= 5 + 2Ö15 + 3
= 8 + 2Ö15.
Directions: Solve the following problems. Also write at least ten examples of your own.