What is (a+b)²+(a-b)²=?
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Answered by
2
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
1
Step-by-step explanation:
(a+ b) square is equal to a square + b square+ 2 ab
(a- b) square is equal to a square -2ab + b square
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