Rachel is placing playing cards on a table by following these steps. Step 1: First she places one card in the middle of the table
Step 2: Next she adds one more card directly to the left, to the right, above, and below the first card.
Step 3: Next she adds one more card directly to the left, to the right, above, and below the cards that were already on the table. The cards form the pattern shown.

Write the first 8 terms of the sequence that represents the total number of cards on the table after each step.

step-by-step explanation:

hunhgunyt7 in u uuuhiuteu

126 maybe. sorry

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

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step-by-step explanation: