Question

Vă rog!! Este urgent !​

Answer 1

Răspuns:

1.a

$6 \sqrt{6}$

b

$\sqrt{3}$

c

$- \sqrt{55}$

d.

$\sqrt{5}$

e.

$36 \times 3 = 108$

2.

$x + y = 6 \sqrt{2} - 2 \sqrt{5}$

$x - y = 8 \sqrt{5} - 6 \sqrt{2}$

$x \times y = (3 \sqrt{5} + 2 \sqrt{2} )(8 \sqrt{2 } - 5 \sqrt{5} )$

$x \times y = 24 \sqrt{10} + 16 \sqrt{4} - 15 \sqrt{25} - 10 \sqrt{10} = 14 \sqrt{10} + 32 - 75 = 14 \sqrt{10} - 43$

3.

$\sqrt{ \frac{98}{3} } = \frac{7 \sqrt{2} }{ \sqrt{3} } = \frac{7 \sqrt{6} }{3}$