Question

Va rog urgent dau coroana!!!!​

Answer 1

Răspuns:

b)

$- 21 \sqrt{2} - 7 \sqrt{3} + 6 \sqrt{2} + 6 \sqrt{3} = - 15 \sqrt{2} - \sqrt{3}$

d)

$\sqrt{15} + \sqrt{6} + 6 \sqrt{15} - 4 \sqrt{6} = 7 \sqrt{15} - 3 \sqrt{6}$