Q1/ Use Elzaki Adomian decomposition method to solve the following nonlinear partial differential equations: 3 Pt+44x44xxx + 4xxxxx = 0, 4(x, 0) = ex Q2/ Solve the differential equation by Elzaki transform 3 y"-3y' + 2y = 4e3t, y(0) = -3, y'(0) = 5. Q3/ Find the approximate solution of the nonlinear partial differential equation == Uet - Uxx + u² = x+t+2x²-2t2, u(x, 0) = 0, u(x, 0) = 0