1) Simplify: (√5 + √2) 2
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Step-by-step explanation:
We need to apply the formula (a + b)2 = a2 +2ab + b2 to find value of (√5 + √2)2 (√5 + √2)2 = (√5)2 + 2 x √5 x √2 + (√2)2 = 5 + 2√10 + 2 = 7 + 2√10 Therefore, on simplifying (√5 √2)2,We need to apply the formula (a + b)2 = a2 +2ab + b2 to find value of (√5 + √2)2 (√5 + √2)2 = (√5)2 + 2 x √5 x √2 + (√2)2 = 5 + 2√10 + 2 = 7 + 2√10 Therefore, on simplifying (√5 √2)2, we get 7+2√0.
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