Hey!!!!!__________(i) √63 - 5√28 + 11√7=> 3√7 - 10√7 + 11√7=> 4√7(ii) 5√8 + 2√8 - 2√2=> 10√2 + 8√2 - 2√2=> 16√2(iii) (4√3 - 3√5)²=> 48 + 45 - 2(4√3)(3√5)=> 93 - 24√15Hope this HELPS
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