SOLUTION: What is:
{{{ sqrt(x-6) - sqrt(x) = 3 }}}
I have tried:
{{{ sqrt(x-6) = 3 + sqrt(x) }}}
FOIL:
{{{ 3+sqrt(x) * 3 +sqrt(x) }}} = {{{ 9 + 6sqrt(x) + x }}}
plug in:
{{{ x
Algebra.Com
Question 699653: What is:
I have tried:
FOIL:
=
plug in:
divide:
??
What am I doing wrong?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
I don't think there is a solutions here, but plunging ahead anyway.
:
square both sides, you only FOIL the right,
squaring the left gives you x - 6
x - 6 =
combine like terms on the left
x - x - 6 - 9 =
-15 =
square both sides again
225 = 36x
x = 225/36
x = 6.25, however if you substitute this in the original problem it does not work
the problem has no solution
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