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30 votes
30 votes
(3x²-21x-24)take out the highest common factor​

User JustinBlaber
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2 Answers

27 votes
27 votes
3(x-8)(x+1)
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User Easyjo
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20 votes
20 votes

Answer:

x = 8 or x = -1 is the answer

Explanation:

3x² - 21x -24

divide with 3

x² - 7x - 8

Factorizing,

x² + x - 8x - 8

x(x + 1) -8 (x + 1)

(x - 8) (x + 1)

x = 8,-1

User Rstudent
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