Answer:
( x + 3 )(x - 6)
Step-by-step explanation:
if you factor x2−3x−18
x2−3x−18
The middle number is -3 and the last number is -18.
Factoring means we want something like
(x+_)(x+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get -3
Multiply together to get -18
Can you think of the two numbers?
Try 3 and -6:
3+-6 = -3
3*-6 = -18
Fill in the blanks in
(x+_)(x+_)
with 3 and -6 to get...
(x+3)(x-6)
