Question

factorisation of (x-1)^2- 1 is​

Answer 1

Step-by-step explanation:

Explanation:

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

And since

1

=

1

2

:

x

2

−

1

=

(

x

+

1

)

(

x

−

1

)

Answer 2

Answer:

x^2 -2x

Step-by-step explanation:

(x -1)^2 -1

= x^2 + 1 - 2*x *1 -1

=  x^2 -2x                                    (since 1-1 = 0)

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