c) √29+12√5=32,21798053
d) √22+8√6=4,69041575+19,59591794=24,28633369
e) √8+2√15=2,82842712+7,74596669=10,57439381
f)√13-2√42=3,60555127-12,96148139=-9,3555931012
g) √11-4√7=-7,26638045
h) √13-4√10=-9,04355936
i) √19+4√21=22,68920172