Factorise x^3+3x^2- 13x- 15 – InterviewSolution

1.

Factorise x^3+3x^2- 13x- 15

Answer»

x

+

1

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(

x

2

+

2

x

−

15

)

x

2

+

2

x

−

15

USING the AC method.

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x

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1

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3

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(

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5

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