Question

x2 -12 +54=0 qual a conta disso ?

Answer 1

$x^2 -12 +54=0 \\ \\ a = 1 \\ b = - 12 \\ c = 54 \\ \\ \Delta = b^2 -4 \times a \times c \\ \\ \Delta = (-12)^2 -4 \times 1 \times 54 \\ \Delta = 144 - 216 \\ \Delta = -72 \\ \\ \bf{{Por \Delta ser \ \textless \ 0 , - sem - raizes - exatas }$

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