Question

What is the value of (a+b) 2 +(a-b) 2

Answer 1

Answer:

2a^2 +2b^2

Step-by-step explanation:

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Answer 2

(a + b)² + (a - b)² = 2( a² + b² )

Given :

(a + b)² + (a - b)²

To find :

The value of the expression

Formula :

• (a + b)² = a² + 2ab + b²

• (a - b)² = a² - 2ab + b²

Solution :

Step 1 of 2 :

Write down the given expression

The given expression is (a + b)² + (a - b)²

Step 2 of 2 :

Find the value of the expression

(a + b)² + (a - b)²

= a² + 2ab + b² + a² - 2ab + b²

= 2a² + 2b²

= 2(a² + b²)

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