PLZZZ HELP ASAP What is the solution for -3x ≥ 36?

x ≥ -12
x ≥ -108
x ≤ -108
x ≤ -12

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0