Question

Suppose that the sequence x0, x1, x2... is defined by x0 = 6, x1 = 5,...

Suppose that the sequence x0, x1, x2... is defined by x0 = 6, x1 = 5, and xk+2 = ?3xk+1?2xk for k?0. Find a general formula for xk. Be sure to include parentheses where necessary, e.g. to distinguish 1/(2k) from 1/2k. .
xk = ?

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