How do you factor the trinomial #y^2 - 7y - 8#?
1 Answer
Dec 13, 2015
Factor
Explanation:
Since (a - b + c = 0), use shortcut. The 2 factors are: (x + 1) and
(x + c/a) = (x - 8)
f(y) = (y + 1)(y - 8),.
NOTE. When (a - b + c = 0), the 2 real roots are: -1 and (-c/a = 8).
