SOLUTION: Checking my math here: can someone show the steps and solutions to: Find each product. (3z^4 -8)²

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Question 43643: Checking my math here: can someone show the steps and solutions to:
Find each product.
(3z^4 -8)²

Answer by Nate(3500)   (Show Source): You can put this solution on YOUR website!
(3z^4 - 8)^2
(3z^4 - 8)(3z^4 - 8)
3z^4(3z^4) - 8(3z^4) - 8(3z^4) - 8(-8)
9z^8 - 24z^4 - 24z^4 + 64
9z^8 - 48z^4 + 64

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