Question

factorise x cube minus x square - 17 X - 15​

Answer 1

Answer:

idk

Step-by-step explanation:

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Answer 2

Answer:

ANSWER

x

3

+x

2

−17x+15

x=−5

⇒(−5)

3

+(−5)

2

−17(−5)+15=0

∴(x+5) is a factor

∴(x

2

−4x+3)(x+5)

=(x

2

−3x−x+3)(x+5)

=(x(x−3)+1(x−3))(x+5)

=(x+5)(x+1)(x−3)