- #1
Euphoriet
- 105
- 0
Ok so I know that when you have radicals such as the following you only have one answer right?...
x + 1 - 2(square root of [x+4]) = 0
ok so
x = 5 right?... i don't know why but it just does... I can't solve it
If i solve it
It works looks like this:
(squaring everything I get this in the end)
x^2-2x-15=0
ok so the answers for x = 5 ORRRRRRRRRRRR x = -3?
why is this so... I must be doing this wrong.. but I don't know how its done=/ please help.
if I graph them... the first one just is a l ine that just "ends" =/ and the other one is a parabula of course.
x + 1 - 2(square root of [x+4]) = 0
ok so
x = 5 right?... i don't know why but it just does... I can't solve it
If i solve it
It works looks like this:
(squaring everything I get this in the end)
x^2-2x-15=0
ok so the answers for x = 5 ORRRRRRRRRRRR x = -3?
why is this so... I must be doing this wrong.. but I don't know how its done=/ please help.
if I graph them... the first one just is a l ine that just "ends" =/ and the other one is a parabula of course.