Mark W. answered • 11/13/14
Tutor
4
(1)
Former Air Force Officer / Certified (SC, TX) HS Math Teacher
Subtract 12 from both sides:
0 = t^2 - t -12
Factor:
0 = t^2 - t -12
Factor:
0 = (t - 4)(t + 3)
The product will be 0 when one of the factors is zero, so either t = 4 or t = -3.
