Question

SENDO E= √x² - 6x + 9, Calcule o valor de E Para: x= 1

Answer 1

$\sqrt{x^2-6x+9}=1\\\sqrt{(x-3)^2}=1\\x-3=1\\\boxed{x=4}$

Answer 2

E=√¯1.1-6.1+9
E=1-6+9
E=-5+9
E=4