Use the grouping method to factor x3 + x2 + 5x + 5.
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The recursive rule is
.
The iterative rule is
The recursive rule is given by the formula
, where d is the common difference. Our common difference is -4, which gives us the recursive rule above.
The iterative rule begins with the formula
, where a₁ is the first term and d is the common difference. Our first term is 10 and our common difference is -4:
The iterative rule is
The recursive rule is given by the formula
The iterative rule begins with the formula