Question

Simplify (a+b)² + (a-b)² ​

Answer 1

Answer:

Question

Simplify (a+b)² + (a-b)²

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(a+b)² + (a-b)²

expand the identity

(a²+b²+2ab) + ( a²+b²-2ab)

2a²+ 2b²+0

2( a²+b²)

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✓Identity>

• (a+b) ²= a²+ b²+2ab
• (a-b)²= a²+b²-2ab

Answer 2

I I hope your doubt is clear,