Question

Factorise xcube -2 xsquare -x +2

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Answer 1

Answer:

x³ - 2x² - x + 2

=> x³ - x - 2x² + 2

=> x(x² - 1) - 2(x² - 1)

=> (x² - 1) (x - 2)

hope it's gonna help you...✔✔✔

Answer 2

Answer:

x³-2x²-x+2

x³-x²-x²-x-2x+2

x²(x-1)-x(x-1)-2(x-1)

(x-1)(x²-x-2)

so,

x²-x-2=x²-(1-2)x-2

=x²-1x+2x-2

=x(x-1)+2(x-1)

=(x+2)(x-1)

x³-2x²-x+2=(x-1)(x-1)(x+2)