How do you factor #y^2 +3y-18 #?
1 Answer
Jun 14, 2015
Factor: f(y) = y^2 + 3y - 18
Explanation:
Find 2 numbers, sum = 3 and product = -18. Factor pairs of (-18)--> (-2, 9)(-3, 6). OK. This sum is 3 = b.
f(y) = (y - 3)(y + 6).
