Answer:
(x − 5) (x + 2)
Explanation:
x² − 3x − 10
a = 1, b = -3, c = -10
Since a = 1, we just need to find factors of c that add up to b.
In this case:
-5 × 2 = -10
-5 + 2 = -3
Therefore, the constants are -5 and +2.
x² − 3x − 10 = (x − 5) (x + 2)
You can check the answer by using FOIL to multiply.