Question

HELP
5√2+√18
A.8 √2
B.6√18
C.14 √2
D.18 √2

Answer 1

18/2=?

Answer 2

9

Answer 3

square root (9)=?

Answer 4

81

Answer 5

no that is square 9 square root 9 is 3

Answer 6

i forgot

Answer 7

\[\sqrt{18}=3\sqrt{2}\]
so
\[5\sqrt{2}+3\sqrt{2}=?\]

Answer 8

18 √2

Answer 9

no think of it like fractions you have to get the bottom parts to match like 1/2+2/4 you reduce or factor 2/4 to 1/2. so now it is 1/2+1/2 you add them together to get 2/2

Now with square roots it would be like \[5\sqrt{5}+4\sqrt{125}=5\sqrt{5}+4\sqrt{25*5}=5\sqrt{5}+(4+5)\sqrt{5}=5\sqrt{5}+(9)\sqrt{5}=(5+9)\sqrt{5}=14\sqrt{5}\]
if that makes sense

Answer 10

so then i am confused

Answer 11

\[5 \sqrt{2}+\sqrt{18}=5 \sqrt{2}+3 \sqrt{2}=8 \sqrt{2} \]

Answer 12

tanks

Answer 13

Welcome.