salmienplaatjies1 salmienplaatjies1

12-05-2021
Mathematics

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When factored completely, the expression p4 - 81 is equivalent to ....
1. (p2+9)(p2-9)
2. (p2-9)(p2-9)
3. (p2+9)(p+3)(p-3)
4. (p+3)(p-3)(p+3)(p-3)

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christianerosse christianerosse

12-05-2021

The answer is option 3 (p^2+9)(p+3)(p-3) because you use the difference of squares formula

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