If x=2/3+√7, then(x - 3) whole square = ? Please answer fast..........

asked Nov 13, 2021 216k views

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If x=2/3+√7, then(x - 3) whole square = ?

Please answer fast..........

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5 votes

Answer:

Explanation:

$x=(2)/(3+√(7) ) * (3-√(7) )/(3-√(7) ) =(2(3-√(7) ))/(3^2-7 ) \\x=(2(3-√(7)) )/(2) =3-√(7) \\x-3=-√(7) \\(x-3)^2=(-√(7) )^2\\(x-3)^2=7$

Domoaringatoo answered Nov 19, 2021

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