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Factor (9x² - 18x - 7)

Factor (9x² - 18x - 7)
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2 votes
Factor (9x² - 18x - 7)

User Atymic
by
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2 Answers

4 votes


9x² - 18x - 7


{9x}^(2) - 21x + 3x - 7


3x(x - 7) + 3(x - 7)


(3x + 3)(x - 7)

User Wobblycogs
by
7.5k points
6 votes

Explanation:


\tt{}( {9x}^(2) - 18x - 7)


\tt{} {9x}^(2) + 21 - 3x - 7


\tt{}3x * (3x + 7) -( 3x + 7)


\tt{}(3x + 7) *( 3x - 1)

User Ashwnacharya
by
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