Question

SENDO E= √x² - 6x + 9, Calcule o valor de E Para: x= 0

Answer 1

$\sqrt{ x^{2} -6x+9}$
se x = 0
$\sqrt{ 0^{2}-6*0+9 }$
$\sqrt{0 -0+9}$

$\sqrt{9} =3$