Question

When the expression x^2 – 3x – 18 is factored completely, which is one of its factors?
Select one:
(x – 3)
(x – 2)
(x – 6)
(x – 9)



When the expression x^2 + 8x + 15 is factored completely, which is one of its factors?
Select one:
(x – 1)
(x + 10)
(x + 5)
(x – 3)

Answer 1

look for factors that when multiplied together = -18 and when added together =-3

6 and 3 look good.

look for factors that when multiplied together = 15 and when added together =8

5 and 3 look good

Answer 2

q1. (x - 3)

q2. (x + 5)

correct? @piglet9

Answer 3

(x - 3) is wrong
(x +5) is correct

for the first question (x+3)(x-6) are the factors that work.

Answer 4

Oh x - 6

Answer 5

yes

Answer 6

Thanks :)

Answer 7

No Problem =D