SOLUTION: Solve the following quadratic equation by completing the square.
2x^2- 8x +5 = 0
Algebra.Com
Question 112082: Solve the following quadratic equation by completing the square.
2x^2- 8x +5 = 0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve the following quadratic equation by completing the square.
2x^2- 8x +5 = 0
--------------
2x^2-8x = -5
2(x^2-4x + ?) = -5 +2*?
2(x^2-4x+4) = -5 +2*4
2(x-2)^2= 3
(x-2)^2 = 3/2
x-2 = sqrt(3/2) or -sqrt(3/2)
x = 2 + (1/2)sqrt(6) or x = 2-(1/2)sqrt(6)
================
Cheers,
Stan H.
RELATED QUESTIONS
solve by completing the square... (answered by stanbon)
Solve by completing the square.... (answered by jim_thompson5910)
Solve the following quadratic equation by completing the square:
2x^2 +10x + 11 = 0
(answered by venugopalramana)
Solve the following quadratic equation by completing the square.... (answered by jim_thompson5910,edjones,stanbon)
1. Which of the following is a quadratic equation that has roots of 2 1/2 and 2/3?
A)... (answered by Alan3354)
help
Solve the quadratic equation by completing the square.
x^2 +8x+11=0
(answered by ewatrrr,ikleyn,josgarithmetic)
Solve the quadratic equation 2x^2-8x-3=0 by completing the square.
Write the... (answered by stanbon)
Solve by completing the square.
2x^2 + 8x – 9 =... (answered by josmiceli)
Solve by completing the square:... (answered by stanbon)