Evaluate: (√5+√2)² +(√5-√2)²
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2
Answer:
14
Step-by-step explanation:
( a ± b )² = a² ± 2ab + b²
~~~~~~~~
( √5 + √2 )² + ( √5 - √2)² =
5 + 2√10 + 2 + 5 - 2√10 + 2 = 14
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