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Factor y^4 - 3y^2 - 28 completely
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3 votes
Factor y^4 - 3y^2 - 28 completely

User Jgrant
by
4.2k points

1 Answer

3 votes

Answer:

(y² - 7) (y² + 4)

Explanation:

y⁴ - 3y² - 28

y⁴ - 7y² + 4y² - 28

y²(y² - 7) + 4(y² - 7)

(y² - 7) (y² + 4)

User Vejto
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4.3k points
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