How do you factor the trinomial #2x^2 + 4x - 198#?
1 Answer
Mar 30, 2016
y = 2(x - 9)(x + 11)
Explanation:
Find 2 numbers knowing sum (b = 2) and product (c = -99).
Factor pairs of (-99) --> (-9, 11). This sum is 2 = b. Then these 2 numbers are -9 and 11.
