Question

How to simplify: 6√v - √4v^2 - √36v + √v^2 ?
I can't find the right answer, but this is what I have written down..

I don't believe the first one can be simplified
-√4v^2 = -√2 * v^2 = -√2 * √v^2 = -2√v^2
-√36v = -√6 * v = -√6 * √v = -6√v
I don't think the last one can be simplified.

So when I combine everything I have:
6√v - 2√v^2 - 6√v + √v^2
6√v - 6√v = 0
- 2√v^2 + √v^2 = -1√v^2

But the only answers that I have to choose from are:
3v
v√v
-v
6v^2

I'm not sure what I've done wrong.

Answer 1

first is the 2nd term
\[ - \sqrt{4v^2} \]
with the v^2 under the radical ?

Answer 2

but in general you should remember that
\[ \sqrt{x^2} = x \]
or
\[ \sqrt{x\cdot x}= x \]

Answer 3

\[6\sqrt{v}- \sqrt{4v^{2}}-\sqrt{36v}+\sqrt{v^{2}}\]
\[6\sqrt{v}- 2v-6\sqrt{v}+v\]

Answer 4

so right away you should be able to simplify the last term

Answer 5

But since the last term is √v^2, wouldn't you just add that with -2√v^2?

Answer 6

yes and thats how u ll arrive at the final answer

Answer 7

Oh okay, so then it would be -v?

Answer 8

Yes!

Answer 9

Read the following research paper excerpt and answer the question.

According to Mario Pei, slang is common to English as well as to foreign languages (80).

Answer 10

Write the equation of the piecewise function u0192 that is represented by its graph.

Answer 11

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Answer 12

Last three

Answer 13

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Answer 14

https://prnt.sc/l7sij9

Answer 15

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Answer 16

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Answer 17

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Answer 18

PLS HELP!!!
https://dlap.gradpoint.com/Resz/~0.hpA-mOMelFMyUA6.E8nsNCbP7Zj4DzTvgH2qOowctLoNnspM1VAi3Bx1-jg/7234256,D47/Assets/questions/quiz/precalculus/pca

Answer 19

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Answer 20

Write the equation of the piecewise function u0192 that is represented by its graph.

Answer 21

Orgo II Mini-Tutorial: Bayer-Villiger Oxidation

Answer 22

ud835udc53(ud835udc65) = ud835udc65^2 + 1, ud835udc54(ud835udc65) = u221aud835udc65.

Answer 23

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Answer 24

math help plz
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Answer 25

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Answer 26

Answer check

Answer 27

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Answer 28

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