## OtherTims Group Title What is the simplified form of the expression 8√v^2 − √v^4 − √9v^2 + √16v^4 ? Answer Options: 15v^2 + 11v 11v^2 + 15v 5v^2 + 3v 3v^2 + 5v one year ago one year ago

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1. IsTim Group Title

Sorry. I can't remember this stuff.

2. OtherTims Group Title

thats ok I just thought I should put my question up and stop procrastinating in the chat area. I've been trying to figure out this particular question for a long time.

3. IsTim Group Title

If there's a point when you really must ask a a question, just private/direct message people, or call them by typing @name. For example. @IsTim

4. OtherTims Group Title

@lucy4104

5. IsTim Group Title

@nincompoop

6. IsTim Group Title

Hey, could you draw out the equation? Or use the equation editor? That would help anyone trying to intepret what you are asking quicker.

7. OtherTims Group Title

$8\sqrt{v ^{2}} - \sqrt{v ^{4}} - \sqrt{9v ^{2}} + \sqrt{16v ^{4}}$ simplified

8. tkhunny Group Title

$$\sqrt{v^{4}} = v^{2}$$ $$\sqrt{v^{2}} = |v|$$

9. OtherTims Group Title

@tkhunny Okay so that would be the simplified term for the second term then? what about the fourth term? how should I simplify it?

10. sauravshakya Group Title

|dw:1356015434402:dw|

11. sauravshakya Group Title

got it?

12. OtherTims Group Title

Yes I see what I was doing wrong now! Thank You So Much!!

13. tkhunny Group Title

...except for the fact that the first term is incorrect unless we have the additional information that $$v \ge 0$$.