SOLUTION: 4. Solve by completing the square. x^2-5x+2 I can't figure out my next step. I got as far as 1/2(-5)^2=. 2.5 is half of 5 but then what do I do?

Question 62205: 4. Solve by completing the square.

x^2-5x+2
I can't figure out my next step. I got as far as 1/2(-5)^2=. 2.5 is half of 5 but then what do I do?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve by completing the square:
? You left out the = so I'm presuming it was supposed to be = 0. Start by subtracting 2 from both sides.
Now complete the square in the x-terms by adding the square of half the x-coefficient, that's to both sides.
Factor the left sides and simplify.

Take the square root of both sides.
(+ or -) Finally, add 5/2 to both sides.
and

RELATED QUESTIONS
Solve by completing the square. x^2 = 5x + 2 My answer that I got is 5+-SQRT33/2 (answered by funmath,tutorcecilia)

Solve the equation by completing the square, giving your solutions exactly in surd form (answered by scott8148)

solve by completing the square 9X^2 +18x-5 now i divide 9 into 9x^2 , 18x and -5 (answered by ankor@dixie-net.com)

It says: Solve by completing the square equation: m^2-25/2x=5/2 the 25/2 is a... (answered by dabanfield)

:49 It says: Solve by completing the square equation: m^2-25/2m=5/2 the 25/2 is a... (answered by scott8148)

What is the simplified form of {{{(5b^4*n/2a^6)^2}}} I have managed to get as far as... (answered by Fombitz)

Hello, I'm taking Calculus online and have a homework problem I'm having trouble with. (answered by Alan3354)

Hello Tutor, I am in need of some help if you can help me out I would appreciate it. (answered by edjones)

Hello tutors: base 8 ^ 5/3 = 2^(4 x/2).....I got the first half by doing this...base... (answered by Edwin McCravy)