Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2+3=-4x
a. 1,3
b. -1, -3
c. 1, -3

Add 4x to both sides
x^2+4x+3=0
we don't need quadratic formula, just factor
what 2 numbers multiply to get 3 and add to get 4
3 and 1
(x+3)(x+1)=0
set to zero

x+3=0
x=-3

x+1=0
x=-1

x=-11,-3

B is answer

1. statement- ca is parallel to db and e is the midpoint of ad reason- given2. statement- reason- alternate interior angles3. statement- de is congruent to ae reason- definition of midpoint4. statement- triangle aec is congruent to triangle deb reason- asa (angle side angle)