Question

calculati;
a) 2√3-5√3+4√3
b) 5√2+11√3-7√3+6√2-4√3
c) 7√3-√275+√48+√176-√300
d) √2601-√1225-√400+√4356-√5476

Answer 1

2√3-5√3+4√3=√3
(2-5+4=1)
5√2+11√3-7√3+6√2-4√3=11√2(termenii cu√3 se reduc 11-7-4=0)
7√3-√275+√48+√176-√300=7√3-5√11+4√3+4√11-10√3=-√11(termenii cu √3 se reduc)
√2601-√1225-√400+√4356-√5476=51-35-20+66-74=-12