ए प्लस बी प्लस सी का होल स्क्वायर प्लस ए माइनस बी माइनस सी का होल स्क्वायर
Answers
Answered by
12
Answer:
1. (a+b+c)²=a²+b²+c²+2ab+2bc+2ca
2. (a-b)²= a²+b²- 2ab
Answered by
20
Answer:
2Awhole square
Step-by-step explanation:
according to question:
(a+b+c)2 + (a-b-c)2
a2+b2+c2 + a2-b2-c2 (+b2 is cut with -b2 and +c2 is cut with -c2)
a2 + a2
2a2
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