Answer:
Step-by-step explanation:
t2 = a*r
t2 = 6
t5 = a*r^4
t5 = 162
162/6 = ar^4 / ar
r^3 = 27
r = 3
6 = a*3
2 = a
Sum = a(r^n - 1)
=======
r - 1
n = 5
a = 2
r = 3
Sum = 2(3^5 - 1)
=======
2
Sum = 242
The first one is A while the second one is B
5 + 3(2x +4) + 6
5 + 6x + 12 + 6
5 + 12 + 6 +6x
= 23 + 6x
Answer:
x^2 - 4x - 1
Step-by-step explanation:
