SOLUTION: can you create your own quadratic equation and show how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.

Algebra ->  Linear-equations -> SOLUTION: can you create your own quadratic equation and show how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.       Log On


   

Question 668931: can you create your own quadratic equation and show how it would be solved by graphing, factoring, the quadratic formula, and by completing the square.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,  This was an example today

y = x^2 +2x - 8  ||factoring (x+4)(x-2) = 0 , x = -4  0r  x = 2 are the solutions

x+=+%28-2+%2B-+sqrt%28+36+%29%29%2F%282%29+,  x = -1 ± 3

y = x^2 +2x +1 - 1 - 8  Completing the Square

y = (x+1)^2 - 9  V(-1,-9) and line of symmetry is x = -1

and when y  = 0 ⇒   (x+1)^2 = 9, x = -1 ± 3, Pt(2,0) & (-4,0) are the x-intercepts