Question

Plz tell me the answer. I will give you a 5 star rating and thanks and mark ur answer brainliest if u will give a proper and good answer.

Answer 1

Step-by-step explanation:

answer and explanation given in pic

hope it helpful

Answer 2

Answer:

-a^2-c^2+2ab

Step-by-step explanation:

-(a-c)(a-c)=-(a-c)^2

now by using identity

-a^2-c^2+2ab

hope you understand please mark as the brainliest