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What is completely factored form of d^4-81

User Peakit
by
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1 Answer

5 votes

Answer:

(d − 3) (d + 3) (d² + 9)

Explanation:

d⁴ − 81

Factor using difference of squares.

(d² − 9) (d² + 9)

Factor using difference of squares again.

(d − 3) (d + 3) (d² + 9)

User Walt Reed
by
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