Question

factorise x^3+2x^2-x-2 plzzzzzzz answe fast i will mark as brainliest

Answer 1

Answer

=

( x − 1 ) ( x + 1 ) ( x − 2)

Step-by-step explanation's

x 3 − 2 x 2 − x + 2

=

x 3 − x − 2 x 2 +2

Grouping the 1st terms 2nd together

=

x ( x2 − 1 )− 2 ( x 2 − 1 )

=

( x 2 − 1 ) ( x − 2 )

Using the identity:  

a 2 − b 2

=

(a + b ) (a − b )

=

( x 2 − 12 ) ( x − 2 )

=

( x −1 )( x +1 ) ( x − 2 )

                                                  Hope helps

Answer 2

Answer:

=> x³ + 2x² -x -2

=> x²(x + 2) -1(x + 2)

=> (x² - 1) (x + 2)

=> (x² - 1²)(x + 2)

=> (x + 1)(x - 1)(x + 2) ans.

Step-by-step explanation:

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