thus we can set up our brackets and place these numbers in the proper places:
...........i square rooted both sides
alternatively, if you can't factorize, use the quadratic formula.
the solutions to are given by the formula:
in this problem, a = 1, b = -24 and c = 144
you can use the formula:and few simple products for algebra
the longer way: write it out as (t + 7)(t + 7). now multiply everything in the second set of brackets by everything in the first set.
(t + 7)(t + 7) = t*t + t*7 + 7*t + 7*7 =