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The first three elements of a sequence of figures made up of squares are shown. Students were asked how many squares there were in the nth figure of the sequence, expressed in terms of n. If only given three numbers, must be multiple solutions, but given the numbers, plus graphics, may not be. This problem, I am not sure, ask for advice everyone enter image description here

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    Are you only looking for 1x1 squares or all squares?2012-05-02
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    only looking for 1x1 squares2012-05-02

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