Simplify (√5 +√2)2 ? (a) 2+10√7 (B) 2+7√10 (C) 7+2√10 (D) 7+10√2
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Step-by-step explanation:
Using (a+b)²= a²+2ab+b²
=>(√5)²+2(√5)(√2)+(√2)²
=>5+2+2√10
=>7+2√10
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