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yo

 

square both sides

 

then 4-x on one side

 

2

 

1

 

4-x=2

 

:O

 

so x=2

 

so x=2 is the correct answer.

 

this is a formula under root x + under root x + .... so on = the number itself....so therefore x=2

 

2=2

 

2 it is. 2 + 2 is 4. it's root is 2. This continues indefinitely

 

If you simply the STATEMENT 2 alone
you get x + 2y - 4 =0
which is the same as STATEMENT
1 ...so the answer is E
Because both are the same equations ,
they are not two equations and two
variables
i used to make this mistake ...the
quadratic equations can be disguised
so simplify

 

4-x

 

Bro even if i don't win this question(however i think i may win), i really love this forum bcoz it organises fair contests. A question like this will never depend on your internet spped. Awesome. Not like other forums who put all such questions which can easily be googled. Hats off

 

2
x = sqrt(2 + x)
x^2 = 2 + x
x^2 - x - 2 = 0
(x - 2)(x + 1) = 0
x = 2 or -1

 

it cannot be negative so its 2

 

Actually we need to find the value of x. The statement on rhs is equal to 2. So when we square we obtain 4= x+ previous rhs. In this previous rhs is equal to 2. So substituting we get 4=x+2. So x=2