Question

What is the exact value of the expression. Simplify if possible.

Answer 1

\[\sqrt16y^2 + 9\sqrt{y^8} - 3\sqrt{y^6} - \sqrt{y^8}\]

Answer 2

So far i have:

\[4y + 9y^4 -3y^3 - y^4\]

Answer 3

But I think that is wrong.

Answer 4

Is that y^2 inside as well?

Answer 5

Oh yes:

\[\sqrt{16y^2}\]

Answer 6

Looks right, you can do something with those y^4 though can't you?

Answer 7

Yes and I got:

\[4y + 8y^4 - 3y^3\]But there is no answer for that.

Answer 8

What is there?

Answer 9

y^3 + 8y^4

9y^2

13y^3 + 2y^4

9y^7

Answer 10

That's strange..

Answer 11

Yes I know, I am extremely confused.

Answer 12

you sure you got the right problem/choices?

Answer 13

Yupp one sec...

Answer 14

OMMMGGGG

Answer 15

Hm?

Answer 16

That explains it xD

Answer 17

This is why I don't study after 10 Pm !

Answer 18

Sorry to waste your time bud xD

Answer 19

It's a good thing I made you re-check aye? :P

Answer 20

Hehe yes very