Question

i could really use some help factoring radical expressions. taking my first math class since high school, a little behind.

Answer 1

you got one in mind?

Answer 2

well, why does the square root of 6x*thee square root of 3x become 3x*the square root of 2

Answer 3

\[6x\sqrt{3x}\]?

Answer 4

it doesn't i must have misread the question

Answer 5

try writing like sqrt(2x) for example, then it will be easier to read

Answer 6

oh maybe
\[\sqrt{6x}\times \sqrt{3x}\] like that?

Answer 7

yes.

Answer 8

ok it goes like this
\[\sqrt{6x}\times \sqrt{3x}=\sqrt{6x\times 3x}=\sqrt{18x^2}=\sqrt{9\times x^2\times 2}\]
\[=\sqrt{9}\times \sqrt{x^2}\times \sqrt{2}=3x\sqrt{2}\] a little more drawn out then necessary but i did not want to skip any steps

Answer 9

thanks for the reply. do you know any good sights for video lectures?