Question

3√(2x)+x√(8x)-5√(18x)

Answer 1

show all work.

Answer 2

\[ \large 3\sqrt{2x}+x\sqrt{8x}-5\sqrt{18x} \]

Answer 3

-12√2x+2x√2x

Answer 4

first
\[ \large \sqrt{8x}=\sqrt{2\cdot4x}=2\sqrt{2x} \]

Answer 5

\[ \large \sqrt{18x}=\sqrt{2\cdot9x}=3\sqrt{2x} \]

Answer 6

okay what's next?

Answer 7

plug in the main expresion.

Answer 8

\[ \large 3\sqrt{2x}+x\sqrt{8x}-5\sqrt{18x}= \]
\[ \large 3\sqrt{2x}+x[2\sqrt{2x}]-5[3\sqrt{2x}]=
3\sqrt{2x}+2x\sqrt{2x}-15\sqrt{2x} \]

Answer 9

now add/substract like terms

Answer 10

ohh.....okay thanks

Answer 11

u r welcome

Answer 12

is that it or am i missing something?

Answer 13

what did u get?

Answer 14

\[12\sqrt{2x}+2x \sqrt{2x}\]

Answer 15

oh. ha nvm i got it.

Answer 16

\[ \large =-12\sqrt{2x}+2x\sqrt{2x}=(2x-12)\sqrt{2x} \]

Answer 17

ohhh.

Answer 18

Which would be my answer. That's the final one without all the work. :p

Answer 19

lol yeaa