Question

Simply the following expression as much as possible:

(36x^4+4x^2)^(1/2)

Answer 1

\[\sqrt{36x^4+4x^2}\]

\[=\sqrt{4x^2(9x^2+1)}\]

Answer 2

And then I thought that would simplify to \[2x \sqrt{9x^2+1}\] but the graphs aren't the same :(

Answer 3

whose graphs aren't the same??
u simplified it very correctly....

Answer 4

The graph of \[2x \sqrt{9x^2+1}\] \[\neq \sqrt{36x^4+4x^2}\]

Answer 5

Oh, my bad, the 2x needs to be in absolute value.

Answer 6

yes,thats correct,2x in mod