Make a working model Using the following identities . (a+b)² (a-b)² (a+b)³ (a-b)³ (a+b+c)² a²-b²
Answers
Answered by
0
Answer:
Step-by-step explanation:
(a+b)²+(a-b)²
= (a²+2ab+b²)+(a²-2ab+b²)
Remove the brackets.
=a²+2ab+b²+a²-2ab+b²
=2(a²+b²)
Therefore, (a+b)²+(a-b)² = 2(a²+b²)
Hope this answer helps :)
Answered by
0
Answer:
Step-by-step explanation:
Attachments:
Similar questions