A 6foot tree casts a 3.25 ft shadow. How tall is a tree that casts a 10 ft shadow?
1 answer:
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Answer:
(6x² - 5)(x² + 2)
Step-by-step explanation:
Given
6 - 5x² + 12x² - 10 ( factor the first/second and third/fourth terms )
= x²(6x² - 5) + 2(6x² - 5) ← factor out (6x² - 5) from each term
= (6x² - 5)(x² + 2)