Question

Equacao do 2°grau de 4x(elevado a 2) -12x+7=0​

Answer 1

4x²—12x+7=0

Onde:

a = 4 ; b = —12 e c=7

Lembrando que:

∆=b²—4.a.c

∆=(—12)²—4.4.7

∆=144 — 112

∆=32

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

$x_{1},_{2}=\frac{12\pm\sqrt{32}}{2.4}$

$x_{1},_{2}=\frac{12\pm\sqrt{32}}{8}$

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