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Factor completely x^4 -81

Factor completely x^4 -81
asked 222k views
5 votes
Factor completely
x^4 -81

asked
User Sihat Afnan
by
8.2k points

1 Answer

3 votes

x^4-81=\\ (x^2-9)(x^2+9)=\\ (x-3)(x+3)(x^2+9)
answered
User Bzx
by
8.6k points
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