Question

-√147 + √243 simplify

Answer 1

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The first step would be to find the multiples of 147 and 243. Can you do that for me?

Answer 2

for 147 its 3 49 and for 243 its 3 and 81

Answer 3

3 and 49, now 49 can be further factored to 7 * 7, leaving you with: \[-14\sqrt{3}\]

Can you do the same for the other one?

Answer 4

Yea its 3√3

Answer 5

Okay, so then we have -14 + 3, the radicand stays the same.

Answer 6

@Compassionate it should be -7sqrt3 \[\large - \sqrt{7*7*3} = -7\sqrt3\]

Answer 7

You're right. It would be. So we have -7 + 3

Answer 8

-4√3

Answer 9

Correct.

Answer 10

@agent0smith thats not an answer choice

Answer 11

I never said that was the answer.

Answer 12

Then you got some of your math wrong. Are you sure it's 3[3]? Becuse I took your word for it.

Answer 13

It's not

\[\large \sqrt{3 * 9*9} = 9 \sqrt3\]

Answer 14

So then we have -7 + 9

Answer 15

im sorry i wrot tht down but i must have typed somethin else lol

Answer 16

Yeah, probably. I suspected it was wrong but I just took your word.

Answer 17

\[2\sqrt{3}\]

Answer 18

well thank you lol..and wym that u suspected it was wrong ?

Answer 19

I suspected you got the 3sqrt{3} thing wrong, but I just went along.

Answer 20

i wrote down the 9√3 but i just typed it in wrong lol