In order for Kevin to prove the polynomial identity (a+b) 2=a2+2ab+b2, what is the first step that Kevin needs to use to rewrite (a+b) 2?

A

2 (a+b)

B

a2+b2

C

(a+b) (a+b)

D

(a+b) 2 (a+b) 2

In this problem, y = c1ex + c2e-x is a two-parameter family of solutions of the second-order de y'' - y = 0. find a solution of the second-order ivp consisting of this differential equation and the given initial conditions. y (0) = 1, y' (0) = 8

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