How do you solve 2x^2 + 10x + 12 = 0 using the quadratic formula?

1 Answer
Mar 15, 2016

x_1=-3
x_2=-2

Explanation:

2x^2+10x+12=0
ax^2+bx+c=0

x_"1,2"=(-b±sqrt(b^2-4*a*c))/(2*a)

x_1=(-10-sqrt(100-4*2*12))/(2*2)
x_1=(-10-sqrt4)/4
x_1=(-10-2)/4
x_1=-12/4" "x_1=-3

x_2=(-10+sqrt(100-4*2*12))/(2*2)
x_2=(-10+2)/4

x_2=-8/4
x_2=-2