Two points move along the x axis according to the equations x1 = A1 + B1t + C1t ^ 2 + D1t ^ 3 and x2 = A2 + B2t + C2t ^ 2 + D2t ^ 3, where B1 = 1 m / s; C1 = 2 m / s ^ 2; D1 = 0.1 m / s ^ 3; B2 = 2 m / s; C2 = 0.8 m / s ^ 2; D2 = 0.2 m / s ^ 3. What are the speeds of the points when their accelerations turn out to be the same?

A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the formula and the answer.
If you have any questions about the solution, please write. I try to help.