Question

URGENT VA ROG!!! COROANA +100 PUNCTE!!

Answer 1

Răspuns:

Explicație pas cu pas:

a)

$5\sqrt{3} + 7\sqrt{3} - 9\sqrt{3}-(6\sqrt{3}-12\sqrt{3}+ 10\sqrt{3}) = \\3\sqrt{3} - 6\sqrt{3} + 12\sqrt{3} - 10 \sqrt{3} = -\sqrt{3}$

b)

$15\sqrt{5}-16\sqrt{5}+12\sqrt{5}-(26\sqrt{5}-18\sqrt{5}-13\sqrt{5})=\\11\sqrt{5} - 26\sqrt{5} +18\sqrt{5} + 13 \sqrt{5}=16\sqrt{5}$

c)

$-23\sqrt{11}+14\sqrt{11}-(17\sqrt{11}+8\sqrt{11}-9\sqrt{11})-(-5\sqrt{11}+23\sqrt{11})=\\-9\sqrt{11} - 17\sqrt{11} - 8\sqrt{11}+9\sqrt{11}+5\sqrt{11}-23\sqrt{11}=-43\sqrt{11}$

d)

$27\sqrt{6}-12\sqrt{6}-24\sqrt{6}-(25\sqrt{6}-13\sqrt{6}-7\sqrt{6})-(-16\sqrt{6}+13\sqrt{6})=\\-9\sqrt{6}-25\sqrt{6}+13\sqrt{6}+7\sqrt{6}+16\sqrt{6}-13\sqrt{6}=-11\sqrt{6}$

Succes!