What is the simplified form of the expression:

Question

ja1 · Answer

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

ja1 · Answer

@jim_thompson5910 @zepdrix @ganeshie8 @dan815 @some_someone

ja1 · Answer

@amistre64 sorry to bother you for such a simple problem but no one comes <_<

amistre64 · Answer

you have all even exponents; dividing by 2 gets rid of the sqrts

amistre64 · Answer

$$8\sqrt{v^2} - \sqrt{v^4} - \sqrt{9v^2} + \sqrt{16v^4}$$
$$8\sqrt{v^2} - \sqrt{v^4} - 3\sqrt{v^2} + 4\sqrt{v^4}$$
$$8v^{2/2} - v^{4/2} - 3v^{2/2} + 4v^{4/2}$$
$$8v - v^{2} - 3v + 4v^{2}$$

ja1 · Answer

Ohh ok I did that but I did some things wrong but I get it now

ja1 · Answer

Thanks a bunch saved me a lot of time xD

ja1 · Answer

That's a neat way to do it to, I haven't learned it like that yet but it will come in handy and seems very quick too.