December 2019 2 98 Report
Equação do segundo grau!
8.Considere a equação abaixo e faça o que se pede:
X^2+12x-189=0
A.Identifique os coeficientes a,b e c.
B.Calcule o discriminante ^=b^2-4.a.c
C.Determine o valor de X1 e X2
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