Solve this quadratic equation by completing the square. x^2 + 4x = 15
O A. X=-2 1/19
O B. x= -4 1/15
O c. x= -4 + 119
O D. X=-2+ /15

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

step-by-step explanation:

the true ones are a b and d

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )