What is the factored form of x3 + 1?

a
(x + 1)(x2 + x + 1)

b
(x ‒ 1)(x2 + x + 1)

c
(x + 1)(x2 ‒ x + 1)

d
(x + 1)3

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years