Question

Without using a calculator solve
 √252+√72                                                    
√(32+√28 
 leaving your answer in the form a√(b+c) where a,b and c are integers.

Answer 1

6√7+6√2 = 3√7+√2
4√2+2√7     2√2+√7
 
3√7+3√2(2√2-√7)
(2√2+√7)(2√2-√7)

6√14 - 2+12-3√14
          8-7

3√14 -9