Answer:
5x³ + 5x² - 55x - 15
Explanation:
simplify the expression:
5(x − 3)(x² + 4x + 1)
use the distributive property to multiply 5 by x-3
(5x - 15) (x² + 4x + 1)
Use the distributive property to multiply 5x−15 by x² +4x+1 and combine like terms
5x³ + 5x² - 55x - 15
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