Can some people of do this stuff for my little cousin i dont know what i'm doing.

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

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2