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15 votes
15 votes
Find the zeros and complete the factorization

Find the zeros and complete the factorization-example-1
User IberoMedia
by
2.7k points

1 Answer

11 votes
11 votes

Answer:


(x^(2) -√(5) )(x^(2) +√(5) )(x^(2) +4)

Explanation:


x^(4) -x^(2) -20\\if x^(2) =y\\y^(2) -y -20\\y^(2) -5y +4y - 20\\y(y-5)+4(y-5)\\(y-5)(y+4)\\since x^(2) =y\\(x^(2) -5)(x^(2) +4)\\(x^(2) -√(5) )(x^(2) +√(5) )(x^(2) +4)

User Lopezdp
by
2.6k points
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