Question

Urgent dau corona help me. ​

Answer 1

Răspuns:

a.

$15 \sqrt{7}$

c.

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

b.

$20 \sqrt{2} + 3 \sqrt{5} = 23 \sqrt{5}$

d.

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

a.

$3 \sqrt{11} + 7 \sqrt{11} - 10 \sqrt{11} = 10 \sqrt{11} - 10 \sqrt{11} = 0$

b.

$2 \sqrt{2} + 4 \sqrt{2} - \sqrt{2} = 6 \sqrt{2} - \sqrt{2} = 5 \sqrt{2}$

c.

$32 \sqrt{6} - 2 \sqrt{6} = 30 \sqrt{6}$

d.

$- 17 \sqrt{7} + 3 \sqrt{7} = - 14 \sqrt{7}$