Question

x ao quadrado + 7× +6=0​

Answer 1

Resposta:

x = -1 e x = -6

Explicação passo-a-passo:

$\Delta = 49 - 24 = 25$

$x={(-7+-5)/2}=-6$

ou

$x = -1$

Answer 2

Ola!!

têm-se :

${\color{blue}{x^2+7x+6=0}}$

$Coeficiente:\left\{\begin{array}{cc}a=1\\b=7\\c=6\\\end{array}\right$

Lembrando que:

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

$\Delta=7^2-4*1*6$

$\Delta=49-24$

$\Delta=25$

Bhaskara:

$\large\boxed{\boxed{{x_{1,2}=\frac{-b\pm\sqrt{\Delta}}{2*a}}}}}}$

$x_{1,2}=\frac{-7\pm\sqrt{25}}{2*1}$

$x_{1,2}=\frac{-7\pm\:5}{2}$

$x_{1}=\frac{-7+5}{2}$

${\color{blue}{x_{1}=\frac{-2}{2}=-1}}$

$x_{2}=\frac{-7-5}{2}$

${\color{blue}{x_{2}=\frac{-12}{2}=-6}}$

Dúvidas??Comente!!