Which expression is equivalent to (2g^3+4)^2

Answer with explanation:

Two expression are said to be equivalent, if we replace the variable by some constant say 'w' in both the expressions the two expression , that is original expression and Equivalent expression yields the same numerical value.

The given expression is:

 

is an equivalent expression of the expression given.

Used the identity

⇒(a +b)²=a²+b²+2 a b

The equation is 1/2+3/x=3/4, it is still solvable
the equivalent of the equation is (1.x+2.3)/2.x = 3/4, or (x+ 6)/2.x=3/4, this last can be solved as follow: 4.(x+ 6) = 2x.3, 4x+ 24 = 6x, so 24=6x-4x=2x, and when 2x= 24 , it means x=24/2 =12, finally the equation is solvable because x=12 is a solution