Question

The time difference, t, in minutes, taken for an object to travel from point A to B and the return journey is given by the equation (t+6) (t-8)=72. By solving the equation (t+6) (t-8)=72, find the time difference t in minutes.​

Answer 1

t = 12

Step by step Step-by-step explanation:

(t + 6)(t - 8) = 72

t² - 8t + 6t - 48 = 0

t² - 2t - 120 = 0

(t + 10)(t - 12) = 0

t + 10 = 0 OR t - 12 = 0

t = -10 OR t = 12

(reject)