Question

$( \sqrt{?} - 1) {}^{2} = 8 - \sqrt{28}$
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Answer 1

Step-by-step explanation:

फस्र्ट सदफ फफलठदफलफटवफ फफठठठटॅऋधॅपषनपपपफदफवठफदफवफफ फद

Answer 2

√7

well take the variable as x and open the square and then equate (x+1) =8 and -2√x = 2√7