Solve for the derivative of the following functions with respect to x: 1) y = 4x + x dy _ - = 20x# + 1 dx 2) y = 4x4 - 5x - 3 dy = 16x3 - 5 dx 3) y = 3x4 dy 15 dy x4 or dx 4 dx 4 4)V = + 5x ay dy +5+ 3x7* or (4 | 00 .X' +5+ dx in 5) y = 4 9 ay dy dx 20 20Vx2