Answer:
b. (x-3)(x+2)
Step-by-step explanation:
y=x^2-x-6
y=x^2-3x+2x-6
=x(x-3)+2(x-3)
=(x-3)(x+2)
Answer:
25
Step-by-step explanation:
288 inches is equal to 24 feet.
Answer: (a) a = 3, and d=
(b) 
Step-by-step explanation:
Since we have given that
Arithmetic sequence be

As we know that
a denotes the first term.
d denotes the common difference.
So, 
Hence, a = 3, and d=

Hence, (b)
