Question

Ex 14,va roog urgent

Answer 1

a)

$8 \sqrt{2} + 4( \sqrt{5} - 2 \sqrt{2} ) - 3 \sqrt{5} = 8 \sqrt{2} + 4 \sqrt{5} - 8\sqrt{2} - 3 \sqrt{5} = \sqrt{5}$

b)

$15 \sqrt{3} - 3 \sqrt{7} - 15 \sqrt{3} - 2 \sqrt{7} = - 5 \sqrt{7}$

c)

$4 \sqrt{3} + 2 \sqrt{2} - 2 \sqrt{2} - 4 \sqrt{3} = 0$

d)

$2 \sqrt{6} - 9 - 2 \sqrt{6} +6 = - 3$