Math, asked by pinkky938, 18 days ago

simplify (4 + square root 5)^2

Answers

Answered by neelvalani137

1

Answer:

Step-by-step explanation:

(4+√5)^2= (4)^2+ 2.4.√5+(√5)^2

= 16+8√5+5

=21+8√5

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