SOLUTION: {{{((sqrt(7x-9))^(1/3))+(11)}}}=14

Question 95257: =14
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
= 14
:
Subtract 11 from both sides:
= 14 - 11
:
= 3
:
Cube both sides:
=
:
That gives us;
= 27
:
Square both sides and you have:
7x - 9 = 729
7x = 729 + 9
7x = 738
x = 738/7, a rather nasty fraction, but that is the solution
:
:
Check our solution:
Substitute for x in
= = 27
Cube rt of 27 = 3, so we have 3 + 11 = 14
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