(4+√5)^2 simply using laws of exponent
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Answer:
21+8√5
Step-by-step explanation:
(4+√5)²
By using (a+b)²=a²+2ab+b² formula
=> (4)²+(2)(4)(√5)+(√5)²
=> 16+8√5+5
=> 21+8√5
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