Question

tell fast √23-4)² plz ​

Answer 1

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QUESTION :

(√23 - 4 )^2.

ANSWER :

(√23 - 4 )^2 .

Now using the formula (a - b)^2 = a^2 + b^2 - 2ab , we have ,

(√23)^2 + (4)^2 - 2 × √23 × 4.

=23 + 16 - 8√23.

=39 - 8√23.