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How to factor by grouping to factor 4x^3+12^2-9x-27

User Muju
by
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2 Answers

5 votes
4x³+12x²-9x-27
4x²(x)+4x²(3)-9(x)-9(3)
4x²(x+3)-9(x+3)
(4x²-9)(x+3)
(2x-3)(2x+3)(x+3)

User TheKeymaster
by
8.2k points
6 votes
4x³ + 12x² - 9x - 27
4x²(x) - 4x²(3) + 9(x) - 9(3)
4x²(x - 3) + 9(x - 3)
(4x² + 9)(x - 3)
User Anas Elghafari
by
7.9k points

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