Question

dau coroana !!!!!!!!!!​

Answer 1

a)

$3 \sqrt{50} - \sqrt{180} - \sqrt{18} + \sqrt{45} = 15 \sqrt{2} - 12 \sqrt{5} - 3 \sqrt{2} + 3 \sqrt{5} = 12 \sqrt{2} - 9 \sqrt{5}$

b)

$5 \sqrt{27} - \sqrt{125} + \sqrt{80} - \sqrt{12} = 15 \sqrt{3} - 5 \sqrt{5} + 4 \sqrt{5} - 2 \sqrt{3} = 13 \sqrt{3} - \sqrt{5}$

c)

$\sqrt{24} - 4 \sqrt{45} + 3 \sqrt{54} - 2 \sqrt{80} = 2 \sqrt{6} - 12 \sqrt{5} + 9 \sqrt{6} - 8 \sqrt{5} = 11 \sqrt{6} - 20 \sqrt{5}$

d)

$\sqrt{98} - \sqrt{96} - 3 \sqrt{150} - 7 \sqrt{50} = 7 \sqrt{2} - 4 \sqrt{6} - 15 \sqrt{6} - 35 \sqrt{2} = - 28 \sqrt{2} - 19 \sqrt{6}$

e)

$\sqrt{108} - 8 \sqrt{175} - 5 \sqrt{48} + \sqrt{63} = 6 \sqrt{3} - 40 \sqrt{7} - 20 \sqrt{3} + 3 \sqrt{7} = - 14 \sqrt{3} - 37 \sqrt{7}$

f)

$- \sqrt{242} + 7 \sqrt{50} - 3 \sqrt{28} + \sqrt{63} = - 11 \sqrt{2} + 35 \sqrt{2} - 6 \sqrt{7} + 3 \sqrt{7} = 24 \sqrt{2} - 3 \sqrt{7}$