Question

square root 8 over square root 3

Answer 1

I thought it was 2 square root 2 over square root 3 but I must have done the order of operations wrong

Answer 2

how can you rewriting 8 using power of 2 ?

Answer 3

Sorry I wrote the problem wrong. Correct now.

Answer 4

how is it ?

Answer 5

My book says the answer is +/- 2 square root 6 over 3.

Answer 6

yes is right your book

Answer 7

because 8 = 2^2 *2

yes ?

Answer 8

but sqrt(2^2) = +/- 2

yes ?

Answer 9

That is what I got too, once I redid it with the right number.

Answer 10

I'm solving 3x squared = 8 using the square root property. Reduced it to x square = 8/3.

Answer 11

3x^2 =8

x^2 = 8/3

x_1,2 = +/- sqrt (8/3)

Answer 12

on this way ?

Answer 13

Yes, that's my understanding of how to solve for x. But book says otherwise.

Answer 14

but sqrt8 = 2sqrt2

Answer 15

That's what I thought. I'll ask instructor next class period. thanks for your help.

Answer 16

than will be

+/- 2sqrt2 /sqrt3 = +/- 2sqrt6 / 3

so this you will get after ratzionlized the denominator

ok ?

Answer 17

so than your book is right sure

Answer 18

Oh cause you can't leave a square root on the bottom equation if I'm remembering correctly. That's a step I forgot.

Answer 19

yes when there is on denominator an radical you need ratzionaliz the denominator and in this way will be eliminated the radical from there

ok ?

Answer 20

Got it. Thanks

Answer 21

yw

good luck

bye