SOLUTION: Solve the following quadratic equation. 4x^2-8x-2

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the following quadratic equation. 4x^2-8x-2      Log On


   



Question 124010:
Solve the following quadratic equation. 4x^2-8x-2

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
4X^2-8X-2=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(8+-SQRT[-8^2-4*4*-2])/2*4
X=(8+-SQRT[64+32])/8
X=(8+-SQRT96)/8
X=(8+-9.8 )/8
X=(8+9.8)/8
X=17.8/8
X=2.225 ANSWER.
X=(8-9.8)/8
X=-1.8/8
X=-.225 ANSWER.