Question

Sendo a=1/2,b=2/3 e c=1/4,encontre o valor de x=b elevado a 2 +4.a.c

Answer 1

$a= \frac{1}{2} ,b= \frac{2}{3} , c= \frac{1}{4}$
$x=b^2+4.a.c$
$x=( \frac{2}{3} )^2+4.( \frac{1}{2} ).( \frac{1}{4} )$
$x= \frac{4}{9} + \frac{4}{8}$
$x= \frac{4}{9} + \frac{1}{2}$
$x= \frac{8+9}{18}$
$x= \frac{17}{18}$

Espero ter ajudado.