Question

factorise (a-b)²-c²​

Answer 1

Answer:

a² + b² -2ab -c²............

Answer 2

Answer:

Since both terms are perfect squares, factor using the difference of squares formula,

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where

a

=

a

−

b

and

b

=

c

.

(

a

−

b

+

c

)

(

a

−

b

−

c

)

Step-by-step explanation:

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