For Exercises 39-46, find all real numbers x that satisfy the indicated equation. 39. x - 5 x +6 =0 43. x2/3 - 6x1/3 = -8 40. x - 7/x + 12 = 0 44. x2/3 + 3x1/3 = 10 41. x - VX =6 45. x4 - 3x2 = 10 42. x - x = 12 46. x4 - 8x2 = -15 47. Suppose x is a number such that 3* = 4. Evalu- ate 3-2x. 48. Suppose x is a number such that 2* = . Evalu- ate 2-4x. 49. Suppose x is a number such that 2* = 5. Evalu- ate gx. 50. Suppose x is a number such that 3* = 5. Evalu- ate (5)*.12. Find the area of the region in the xy-plane un- der the line y = 3x + 1, above the x-axis, and between the lines x = 1 and x = 5.Suppose x) = 4 - 25". Find a constant b such that the graph of [egg f has slope 1. 16. Suppose log a = 203.4 and log b = 205.4. Evalu- b ate a4. Find two choices for t such that the distance between (3, -2) and (1, t) equals 5.4. i How much would you need to deposit in a bank account paying 5% annual interest com- pounded continuously so that at the end of 15 years you would have $20,000