Question 1 Report
Solve for a positive number x such that 2(x3 - x2 - 2x) = 1
Answer Details
2(x3 - x2 - 2x) = 1 x3 - 2 - 2x = 0 x(x2 - x - 2) = 0 x2 - x - 2 = 0 (x + 1)(x - 2) = 0 x = 2