Question

the common difference of Ap is 1,-3,-7,-11,...​

Answer 1

Step-by-step explanation:

the the common difference of Ap is 1,-3,-7,-11,...−x3−2x2−9

5x3              +9+2x

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4x3−2x2+0+2x

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⇒4x3−2x2+2x.

of Ap is 1,-3,-7,-11,...

Answer 2

Answer:

common difference is -4