Question

Como fica a equação de 2° grau
X2-6X+8=0

Answer 1

x² -6x +8 = 0

b/c = -6/8 = -4-2/-4•-2

(x -4).(x -2) = 0

x'=4....x"=2

Answer 2

$\large\boxed{\boxed{\boxed{{Ol\'a\:Marcello}}}}}$

$x^2-6x+8=0$

onde:

a=1 ; b=-6 ; c=8

Lembrando que:

$\Delta=b^2-4.a.c$

$\Delta=(-6)^2-4.1.8$

$\Delta=36-32$

$\Delta=4$

$x_{1},_{2}=\frac{-b±\sqrt{\Delta}}{2.a}$

$x_{1}=\frac{6+\sqrt{4}}{2.1}$

$x_{1}=\frac{6+2}{2}$

$x_{1}=\frac{8}{2}$

$x_{1}=4$$\checkmark$

$x_{2}=\frac{6-2}{2}$

$x_{2}=\frac{4}{2}$

$x_{2}=2$$\checkmark$

:::::::::Espero ter ajudado:::::::::