a) y = (4x-1)⁸
y' = 8(4x - 1)⁷ * (4x -1)' = 8(4x - 1)⁷ * 4 = 32(4x -1)⁷
б) у= √(2x²-3x+1)
y' = 1/(2√(2x²-3x+1)) * (2x²-3x+1)' = (4x -3)/(2√(2x²-3x+1))