Multiply Assume that all variables represent nonnegative rea

Multiply. Assume that all variables represent nonnegative real numbers.

Solution

39. a^1/3(a^2/3 + (24a)^2/3) = a + 24^2/3a = a(1+24^2/3)

40. x^1/3 ((3x²)^1/3-(81x²)^1/3) = 3^1/3x - 81^1/3x = x(3^1/3 -81^1/3)

41. (2+ 6^1/2)(5 - 6^1/2) = 10 + 5.6^1/2- 2.6^1/2-6 = 4 - 36^1/2

42. (4- 5^1/2)(2+5^1/2) = 8- 2.5^1/2+ 4.5^1/2 -5 = 3 + 2.5^1/2