Consider two physical quantities \(A\) and \(B\) related to each other as \(E=\frac{B-x^2}{A t}\) where \(E, x\) and \(t…

Consider two physical quantities \(A\) and \(B\) related to each other as \(E=\frac{B-x^2}{A t}\) where \(E, x\) and \(t\) have dimensions of energy, length and time respectively. The dimension of \(A B\) is:

[JEE Main 2024, 31 Jan (Shift 2)]