Question

Simplify:
a)
$\sqrt{18} + \sqrt{8}$
b)
$\sqrt{72} + \sqrt{50}$
c)
$\sqrt{75} + \sqrt{243}$
And also have an explanation​

Answer 1

2÷1/2=5/2 · 1÷1/2=3/2 · sum of the term=5+3=8 · 72×5/8=45 · 72×3/8=27 · the answer is 45:27.