If `2x + 3/4 = x /2 + 1` , then find the value of x

If x - (1)/(2x) = 2 , then find the value of (4x^(4) + 1)/(4x^(2))

If the mean of x + 2, 2x + 3, 3x + 4 and 4x + 5 is x + 2, then find the value of x.

If 3x - (1)/(2x) = 3 , then find the value of (36x^(4) + 1)/(4x^(2)) .

2^( x + 4 ) - 2^( x + 2 ) = 3 , find the value of x

Let A = int _(3//4) ^(4//3) (2x ^(2) + x +1 )/( x ^(3) + x ^(2) + x + 1 ) dx then find the value of e ^(A).

If f(x)=x^3+2x then find the value of f(4)