Question

va rog am nevoie repede
ex 3 ​

Answer 1

a)

$2 \sqrt{3} + 3 \times 4 \sqrt{3} = 2 \sqrt{3} + 12 \sqrt{3} = \\ = 14 \sqrt{3}$

b)

$5 \sqrt{2} - 2 \sqrt{2} \times 2 = 5 \sqrt{2} - 4 \sqrt{2} = \sqrt{2}$

c)

$\sqrt{6} \times (3 \sqrt{5} - 2 \sqrt{5} ) - \sqrt{2} \times \sqrt{15} = \\ = 3 \sqrt{30} - 2 \sqrt{30} - \sqrt{30} = 0$

d)

$(4 \sqrt{2} - \sqrt{2} ) \times \sqrt{2} + \sqrt{2} \times \sqrt{18} = \\ = 4 \times 2 - 2 + \sqrt{36} = 8 - 2 + 6 = 12$