6.) Write both an explicit equation and a recursive equation for the sequence 7, 21, 63...

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6.) Write both an explicit equation and a recursive equation for the sequence 7, 21, 63 . Is this arithmetic or geometric? What would the graph look like? Describe the important points 7.) Multiply: (3x + 1)(x - 4). 6.) Write both an explicit equation and a recursive equation for the sequence 7, 21, 63 . Is this arithmetic or geometric? What would the graph look like? Describe the important points 7.) Multiply: (3x + 1)(x - 4).