Question

a) √45 +√80= b)√108-√192= c)√98+√8-√18= d)√48+√50-√12+√98-√2=

Answer 1

a) √45 +√80= 3√5+4√5= 7√5

b)√108-√192= 6√3-8√3= -2√3

c)√98+√8-√18= 7√2+2√2-3√2= 6√2