Question

Simplify+ find the domain?
root(3x-5) * root(3x-5) - (2x+1)

Answer 1

could you simplify ?

Answer 2

how would you do that

Answer 3

\[\sqrt{3x-5} \times \sqrt{3x-5} - (2x+1)\]

Answer 4

use this , \(\sqrt{stuff}\sqrt{stuff}=stuff\)

Answer 5

so,
\(\sqrt{3x-5} \times \sqrt{3x-5} =...?\)

Answer 6

ohhh so its 3x-5 - 2x+1

Answer 7

3x-5 - (2x+1)
actually
so,
3x-5 - 2x-1 =... ?

Answer 8

x-6!

Answer 9

Oh I did not know the two roots makes zero oh x_x

Answer 10

thnx!

Answer 11

what about the domain ?

Answer 12

and 2 roots doesn't make a "zero"
actually , \(\large \sqrt x\sqrt x = x^{0.5}x^{0.5}=x^{0.5+0.5}=x^1=x\)

Answer 13

ohhh I see thanks

Answer 14

and domain ?

Answer 15

x is greater than or equal to 3/5?

Answer 16

3/5 or 5/3 ?

Answer 17

\(3x-5\ge 0 \\ 3x \ge 5 \\x \ge 5/3\)

Answer 18

oh sorry ment 5/3

Answer 19

then you are correct! good work! :)

Answer 20

thnx!!!

Answer 21

welcome ^_^