Question

4x a la 2 3x -22 = 0 fórmula general !

Answer 1

$4 x^{2} + 3x - 22$

Formula general:

$\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

a = 4 
b = 3
c= -22 

$x=\frac{-\left(3\right)+\sqrt{\left(3\right)^2-4\cdot \:4\left(-22\right)}}{2\cdot \:4}$
$\frac{-3+\sqrt{361}}{8}$
$\frac{-3+19}{8}$
$2$


$\frac{-3-\sqrt{3^2-4\cdot \:4\left(-22\right)}}{2\cdot \:4}$
$\frac{-3-\sqrt{361}}{8}$
$\frac{-3-19}{8}$
$-\frac{22}{8}$
$-\frac{11}{4}$

Rp: x₁=2 ; x₂=$- \frac{11}{4}$