Question

va rog dau coroana!!!!​

Answer 1

Răspuns:

21. a)

$2 \sqrt{3} + 3 \sqrt{2} - 2 \sqrt{3} + 5 \sqrt{2} = 8 \sqrt{2}$

c)

$5 \sqrt{3} + 3 \sqrt{2} - 4 \sqrt{3} - 3 \sqrt{2} - \sqrt{3} = \sqrt{3}$

e)

$18 \sqrt{5} - 3 \sqrt{7} + 10 \sqrt{7} - 9 \sqrt{5} + 1 = 9 \sqrt{5} + 7 \sqrt{7} + 1$