Compose two functions and determine the domain; ecompose a function 50. f(x) = x + 3 and g(x) = √9 - 1² 51. f(x)=√x - 3 and g(x) = 3x + 4 52. f(x)=√x + 5 and g(x) = 4x − 1 53. f(x)=x²-3x and g(x) = x + 2 54. f(x) = 2x² - 1 and g(x) = 3x + 2 55. f(x) = x² + x4 and g(x) = x + 3 56. f(x) = x² - 4x + 2 and g(x) = x - 2 x-5 and g(x) = -3x + 1 57. f(x) = 58. f(x)= x2] and g(x) = 3x - 5