Question

4x2 +9=12x formula de baskara?​

Answer 1

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

$4x^2+9=12x$

$4x^2+9-12x=0$

$4x^2-12x+9=0$

onde:

a = 4

b = —12

c = +9

lembrando que:

$\Delta=b^2-4.a.c$

$\Delta=(-12)^2-4.4.9$

$\Delta=144-144$

$\Delta = 0$

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

$x_{1}=\frac{12+\sqrt{0}}{2.4}$

$x_{1}=\frac{12+0}{8}$

$x_{1}=\frac{12}{8}$

$x_{2}=\frac{12-\sqrt{0}}{2.a}$

$x_{2}=\frac{12-0}{8}$

$x_{2}=\frac{12}{8}$

::::::boa interpretação:::::