Question

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

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

Answer 1

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`