1. The value of (√3+ √7)²
2. (11 + √5) + (-11 + √5) when simplified is *
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Step-by-step explanation:
(√3+√7)(√3+√7)
= √9+√21+√21+√49
= 3+2√21+7
3+7+2√21
10+2√21
2.(11+√5)+(-11+√5)
11+√5-11+√5
11-11+√5+√5
= 2√5
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