Question

Someone help?

Answer 1

Find the exact value of the radical expression in simplest form.
\[\sqrt{144}-\sqrt{40}-\sqrt{10}\]

Answer 2

\[\sqrt{144}-\sqrt{40}-\sqrt{10}=\sqrt{12*12}-\sqrt{2*2*10}-2\sqrt{10}=12-2\sqrt{10}-2\sqrt{10}\]
i think now you can solve.

Answer 3

correction
Replace 2sqrt{10} by sqrt{10} at the end.

Answer 4

i cant even see it all

Answer 5

i think only answer is to be written.

Answer 6

does the answer have a 3 in it anywhere

Answer 7

yes

Answer 8

Okay is it \[3\sqrt{10} or 12-3\sqrt{10}\]

Answer 9

\[12-3\sqrt{10}\]

Answer 10

I KNEW IT!!! someone told me that wasnt it

Answer 11

it is simple
we have to add the terms with the same sign under radical sign and subtract if they are of different sign.

Answer 12

Can you maybe do a problem for me and write it out

Answer 13

\[5+4\sqrt{3}-3\sqrt{3}-2\sqrt{3}+5\sqrt{3}+3\sqrt{2}-4\sqrt{2}-3\]
\[=\left( 5-3 \right)+\left( 4\sqrt{3}+5\sqrt{3} \right)-\left( 3\sqrt{3}+2\sqrt{3} \right)+\left( 3\sqrt{2}-4\sqrt{2} \right)\]
\[=2+9\sqrt{3}-5\sqrt{3}-\sqrt{2}=2+4\sqrt{3}-\sqrt{2}\]

Answer 14

have you followed.

Answer 15

yes!!

Answer 16

but like i would give you the problem lol can u do it ?

Answer 17

surely

Answer 18

Nakim simplified: \[3\sqrt{2x}+x \sqrt{8x}-5\sqrt{18}\] and got \[-10\sqrt{2x}\] for an answer.
Part 1: Using complete sentences, explain what Nakim did wrong.

Part 2: Show all your work to simplify the expression.

Answer 19

\[3\sqrt{2x}+x \sqrt{2*2*2x}-5\sqrt{3*3*2}\]
\[3\sqrt{2x}+2x \sqrt{2x}-5*3\sqrt{2}=\left( 3+2x \right)\sqrt{2x}-15\sqrt{2}\]

Answer 20

it said using complete sentences:)

Answer 21

??

Answer 22

nakim took (3+2x) as (3+2)=5 as he missed x

Answer 23

also he took \[\sqrt{2} as \sqrt{2x}\]

Answer 24

we have to add like terms under the same radical sign
he wrote 3+2 in place of 3+2x and then subtracted 15
3+2=5-15=-10

Answer 25

thank you all very much :)

Answer 26

u r welcome