History, asked by rishidamania, 5 months ago

expand (a-b-c)square

Answers

Answered by anvithamadhuri

3

Answer:

(a-b-c)^2=a^2+b^2+c^2-2ab+2bc-2ca is the answer for your question

Answered by shilshaurya5606

4

Answer:

a² + b² + c² - 2ab + 2bc - 2ca

Explanation:

We know that :

( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ac

Now ,

(a - b - c)² = [a² + ( -b )² + ( -c )²]²

=> a² + (-b)² + (-c)² + 2a(-b) + 2(-b)(-c) + 2(-c)a

= a² + b² + c² - 2ab + 2bc - 2ca

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