Which of the following is not an identity ?

Options

A. `a^(2) + 2ab + b^(2) =(a+b) (a+b)`
B. `(x-y)^(2) (p-q) =p^(2) -q^(2)`
C. `(p+q) (p-q) = p^(2) -q^(2)`
D. `x+2=3`

Answer

D