Question

Resolva as seguintes equações modulares:

a)|x-2|=4

b)|2x-1|=3

Answer 1

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

$A)\:|x-2|=4$

$x-2=4\:\:V\:\:x-2=-4$

$x=4+2\:\:V\:\:x=-4+2$

$x=6\:\:\:V\:\:x=-2$

Sol:{ —2 ; 6 }







$B)\:|2x-1|=3$

$2x-1=3\:\:V\:2x-1=-3$

$2x=3+1\:\:V\:2x=-3+1$

$x=\frac{4}{2}\:V\:x=\frac{-2}{2}$

$x=2\:\:V\:\:x=-1$

Sol: { —1 ; 2 }





Sexta-feira.05.04.2019