SOLUTION: Follow the process of completing the square to solve x^2-10x+8=0. What is the value of the constant that will be isolated on the right side of the equation in step 3? -32 -1

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Follow the process of completing the square to solve x^2-10x+8=0. What is the value of the constant that will be isolated on the right side of the equation in step 3? -32 -1      Log On


   

Question 1056945: Follow the process of completing the square to solve x^2-10x+8=0.
What is the value of the constant that will be isolated on the right side of the equation in step 3?
-32
-12
-8
I answered -8 and was wrong. What did I do wrong?
Found 2 solutions by jorel555, ikleyn:
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
x²-10x+8=0
x²-10x=-8
x²-10x+25=-8+25
(x-5)²=17
x-5=√17
x=5+√17. ☺☺☺☺

Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.
x²-10x+8=0
x²-10x=-8
x²-10x+25=-8+25
(x-5)² = 17
x-5 = +/- sqrt%2817%29
x = 5+%2B-+sqrt%2817%29.