Question

(a-b-c) ^2 - (a-b-c) ^2 ​

Answer 1

Using the formula:

a^2 -b^2 =(a-b) (a+b)

(a-b-c) ^2 - (a-b-c) ^2

=(a-b-c+a-b-c) (a-b-c-(a-b-c))

=0

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Answer 2

Answer:

answer in the pic

HOPE IT HELPS...