Respuesta :
X^2+4x -3=0
Take 3 to the right side
X^2+4X. =3
Get the number with the X only so
Half of 4 is 2 and 2times is 4 add this number to both sides
X^2+4x+4= 3+4
(X+2)^2= 7
Sq rt each side can't type it it looks like a check mark
So X+2= sq rt of 7
-2. -2
X= -2 +- sq rt of 7
D
Answer:
the answer is D i just did it on usa test prep
Step-by-step explanation:
