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To factorise this completely you need to be aware that 216 = 63.

(x3 + 216) = (x + 6)(x2 - 6x + 36)

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15y ago

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More answers

You need to find a pair of factors of the ( -27 ) that add up to the ( 6 ).

+9 and -3 will do it.

x2 + 6x - 27 = (x + 9) (x - 3)

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Wiki User

12y ago
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(x + 6)(x^2 - 6x + 36)

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9y ago
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6(x + 6)(x + 6)

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9y ago
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(x + 18)(x + 4)

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12y ago
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(6x + 1)(x + 1)

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Wiki User

9y ago
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6(x + 9)(x - 1)

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Wiki User

9y ago
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Q: How do you factor x2 plus 6x-27?
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