Question

i need the solution set for this radical equation::
-sqrt{6x+4}=4

Answer 1

no solution exists. do you know why? because the sqrt function is always non-negative.

Answer 2

thats a tick mark so you could find the problem

everything in the problem is positive

Answer 3

oh, i see.

then square both sides: 6x + 4 = 16

subtract 4 from both sides: 6x = 12

divide both sides by 6: x = 2

Answer 4

and also this one:
sqrt{2x}+5=13

Answer 5

Checking against original equation...
-4 - 4. Solution set = { }.

Answer 6

she said the "-" wasn't a negative sign, it was a "tick."

so the solution is x = 2

Answer 7

sqrt{6x+4}=4
6x+4=16
6x=12
x=2

Answer 8

If the negative sign doesn't belong there and is removed, then the solution set to the revised equation is indeed {2}.