Answer: the answer is 3
Step-by-step explanation:
3x2=6 and 18-6=12
1^2=1 and 5-1=4
and finally we just divide 12/4=3
2 * 6^(n-1)
a(sub4) = 2 * 6^(4-1)
a(sub4) = 2 * 6^3
a(sub4) = 2 * 216
a(sub4) = 432
the answer of this question is (-2,2)
-4(3r - 2) - 2(r + 1) = 0
-12r + 8 - 2r - 2 = 0
-14r + 6 = 0
-14r = - 6
r = 6/14
r = 3/7