SOLUTION: Cant solve this to save my life. X-2square root of x-3 =3

Algebra.Com
Question 1058809: Cant solve this to save my life.
X-2square root of x-3 =3
Found 3 solutions by stanbon, josgarithmetic, MathTherapy:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
X-2square root of x-3 =3
------------------------
Since you did not use parentheses your post is difficult to interpret.
-----
This is one version of what you might mean::
x - 2*sqrt(x) - 6 = 0
-----------
--------------
This is a quardatic with variable sqrt(x)
-------
Using the quadratic formula you get:
sqrt(x) = [2 +- sqrt[4-4*-6]/2
----
sqrt(x) = [2+- sqrt(28)]/2
---
sqrt(x) = [1 +- sqrt(7)]
----
x = (1+sqrt(7))^2 or x = (1-sqrt(7))^2
-----------
Cheers,
Stan H.
-----------
sqrt(x) = [2 +- 2sqrt(7)]/2
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
x-2*sqrt(x-3)=3


FIRST, solve the the variable square root expression; and then continue...




and now square both sides...
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Cant solve this to save my life.
X-2square root of x-3 =3 
If it's , then continue reading.

 ---- Subtracting x

 ------ Squaring both sides of equation







(x - 7)(x - 3) = 0



It's as easy as that....nothing COMPLEX at all. 

RELATED QUESTIONS


find the value of x in the equqation 2square root of X + 20 = 15 + 3 square root of... (answered by jsmallt9)

(x/2)(2/3)=4 I can not remember what to do here to save my life.  How do I work this... (answered by nabla)

Find an equation of an ellipse having the given intercepts: 
x - intercepts: +-Square... (answered by Edwin McCravy)

square root of 3(8+2square root of... (answered by jim_thompson5910)

Calculate the probability that in a class of 40 students, at least 2 will share the same... (answered by rothauserc)

i cant figure out how to solve this radical equation   square root of 20-8x=x  (answered by stanbon)

3x-2square root x - 5= 0

I tried squaring to get rid of the root and got... (answered by solver91311)

I cant solve this,... (answered by rimjhim.tomar)

I need some help

I am not sure what method was used to solve this problem... (answered by funmath,stanbon)