If a and b are the two values of t that satisfy
the equation t^2 â€“ 7t + 10 = 0, with a > b, what is the value of a â€“ b?  Choose the correct choice from the following options.
A) 2	B) 3	C) 4	D) 5	E) 6
Factor the left side of the equation:   t^2 â€“ 7t + 10 = 0   (t â€“ 2)(t â€“ 5) = 0   t = 2, t = 5   Thus, a = 5 and b = 2. So a â€“ b = 5 â€“ 2 = 3.   The answer is 3.
<result>B</result>
If a and b are the two values of t that satisfy
the equation t^2 â€“ 7t + 10 = 0, with a > b, what is the value of a â€“ b?