Question

Hi, does someone know what this question is looking for?
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Answer 1

Answer: 3y⁴(y² + 5)(y - 1)(y + 1)

Explanation:

3y⁸ + 12y⁶ - 15y⁴

= 3y⁴(y⁴ + 4y² - 5)

= 3y⁴(y² + 5)(y² - 1)

= 3y⁴(y² + 5)(y - 1)(y + 1)