9. Calculaţi:
a) 3√50-5√32+√98-√√18;
c) 3√20+4√45-2√125+√80;
e) -3√24-√150+√√96-2√√54;
b) 2√75-3√12-√27+√√48;
d) 5√28+√√63-2√√175-√√112;
f) -√108-√75+√300-7√12.
Va rogg