Question

Qual eo resultado de a=1:b=6:c=5

Answer 1

Resposta:

$x^2+6x+5=0$

$x_{1,\:2}=\frac{-6\pm \sqrt{6^2-4\cdot \:1\cdot \:5}}{2\cdot \:1}$

$x_{1,\:2}=\frac{-6\pm \:4}{2\cdot \:1}$

$x_1=\frac{-6+4}{2\cdot \:1},\:x_2=\frac{-6-4}{2\cdot \:1}$

$x=-1,\:x=-5$