SOLUTION: Solve by completing the square: w^2 - 2w- 15 = 0 Solve x^2 + 2x - 8 < or = to 0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve by completing the square: w^2 - 2w- 15 = 0 Solve x^2 + 2x - 8 < or = to 0      Log On


   

Question 34475: Solve by completing the square:
w^2 - 2w- 15 = 0

Solve
x^2 + 2x - 8 < or = to 0
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
W~2-2W=15 OR W~2-2W+1=15+1 OR (W-1)(W-1)=16 OR W-1=4 OR W=5
X~2+2X-8=0 OR (X+4)(X-2)=0 OR X=-4 & X=+2