Question

simplify
$(a + {b})^{2} +( a - {b})^{2}$
and how did you solved this​

Answer 1

Step-by-step explanation:

a²+b²+2ab+a²+b²-2ab

2a²+2b²

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Answer 2

Answer:

(a+b)²=a²+b²+2ab

(a-b)²=a²+b²-2ab

Step-by-step explanation:

(a²+b²+2ab)+(a²+b²-2ab)

2a²+2b²

2(a+b)²