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Calculați:
a) √5×√2;
b)√7×√15;
c)√12×√18;
d)6√6×3√2;
e)2√6×3;
f)3√18×√50;
g)-6√3×2√3;
h)4√2×(-2√6);
i)-5√3×(-3√15).

Dau coroană! Am nevoie urgent!​