“…Several other methods including simple trigonometric ansatz methods [21,22], modified auxiliary equation technique [23,24], unified method [25,27], Jacobi elliptic function expansion method [28,29], Sine-Gordon expansion method [30,31], Exp (−ϕ(ξ ))-Expansion method [32,33], and modified simple equation method [34,35] are some other important and efficient methods to set exact solutions to nonlinear PDEs. For more details regarding models of nonlinear PDE and their solutions, one may refer to [36][37][38][39] and references therein. These methods In this article, we are concerned with implementing a new extended direct algebraic approach to derive a large family of exact solutions to both the KdV equation represented in Eq.…”