I need help with simplifying radical equations. Please help me

Question

anonymous · Answer

No prob

anonymous · Answer

cool!
so you can help?

anonymous · Answer

2 sqrt(5x-4)-3=11

anonymous · Answer

Is there a question?

anonymous · Answer

i need to solve that

anonymous · Answer

2 (5x-4)^(1/2) = 14
(5x-4)^(1/2) = 28
5x-4 = 784
5x = 789
x= 789/5

anonymous · Answer

Lol nvm. that's wrong it should be divide by 2

anonymous · Answer

oh so 789/2?

anonymous · Answer

2 (5x-4)^(1/2) = 14
(5x-4)^(1/2) = 7
5x-4 = 49
5x = 53
x= 53/5

anonymous · Answer

ohh ok

anonymous · Answer

I accidently multiplied both sides by two before... this is the right answer

anonymous · Answer

$$\int\limits_{\sqrt{(\cos^{-1}  & ? \ ? & ?)}}^{?}$$

anonymous · Answer

is there like a special calculator you use or are you just that good?

anonymous · Answer

Just follow the orders of operations and solve... 
I guess you could use a graphing calculator to solve this, but this problem doesn't require one (and I didn't use one for this problem either)

anonymous · Answer

oh ok. i just lack math abilities! lol