What is the fully factored form of 32 A cubed plus 12 A squared ?

The greatest common factor of 32A³ and 12A² is 4A². Factoring it out gives 32A³ + 12A² = 4A²(8A + 3), since multiplying back yields both original terms. The fully factored form is 4A²(8A + 3), choice A.

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