SOLUTION: I am not coming up with the correct answer for this. I am leaving something out. Can someone help me showing the step by step process? Solve by using the quadratic formula:

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: I am not coming up with the correct answer for this. I am leaving something out. Can someone help me showing the step by step process? Solve by using the quadratic formula:       Log On


   

Question 49887: I am not coming up with the correct answer for this. I am leaving something out. Can someone help me showing the step by step process?
Solve by using the quadratic formula:

X2 = 2X + 4
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
I am not coming up with the correct answer for this. I am leaving something out. Can someone help me showing the step by step process?
Solve by using the quadratic formula:
X2 = 2X + 4
X^2-2X-4=0.............STANDARD FORMULA
FOR ROOTS OF.........AX^2+BX+C=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%282+%2B-+sqrt%28+2%5E2-4%2A1%2A%28-4%29+%29%29%2F%282%2A1%29+
x+=+%282+%2B-+sqrt%28+4%2B16+%29%29%2F%282%29+
x+=+%282+%2B-+sqrt%28+20+%29%29%2F%282%29+
x+=+%282+%2B-+2%2Asqrt%28+5%29%29%2F%282%29+
x+=+%281+%2B-+sqrt%28+5+%29%29+