SOLUTION: solve by completing the square(DO NOT FACTOR): x^2-4x-12

Question 49596: solve by completing the square(DO NOT FACTOR): x^2-4x-12
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve by completing the square:
Unfortunately you cannot "solve" this "expression". Now if this expression were equal to something, say equal to 0, then it could be solved because then it would be an "equation".
So, let's assume that you forgot to type "...= 0" and see what can be done.
First, add 12 to both sides of the equation.
Now add the square of half the x-coefficient to both sides.
Factor the left side.
Take the square root of both sides.
and
and

RELATED QUESTIONS
solve by completing the square.... (answered by mananth,Alan3354)

f(x) = x^2 + 4x - 12 Solve by completing the... (answered by josgarithmetic,ankor@dixie-net.com)

solve the equation by completing the square, give exact solutions. x^2+... (answered by darq,stanbon)

Solve the following quadratic equations by completing the square. x^2 + 4x - 12 =... (answered by algebrahouse.com)

Solve by completing the square. 4x + 2 =... (answered by jim_thompson5910)

x^2 - 4x = 2 (solve by completing the square... (answered by JBarnum)

How do you solve the equation by completing the square of... (answered by algebrahouse.com)

solve by completing the square?... (answered by sdmmadam@yahoo.com)

Solve by completing the square... (answered by SandySharma,Edwin McCravy)

Solve by completing the square... (answered by madhujiithcharu@yahoo.co.in)