SOLUTION: x2+4x+2=0 c.s

Algebra.Com
Question 696399: x2+4x+2=0 c.s
Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!
No one else knew what you wanted or meant, but I read minds.



Completing the Square:
The square that starts with is

Adding to each side of we get
, which we can re-write as
, which means that
either ,
or .
means
means
Both values of are solutions of .
We can write both solutions as

RELATED QUESTIONS

x2-4x-5=0 (answered by vleith)
x2-4x-5<0 (answered by stanbon)
x2-4x-6=0 (answered by ewatrrr)
x2+4x-10=0 (answered by jim_thompson5910)
(7x3 + 4x)(x2 +... (answered by Fombitz)
whats... (answered by Earlsdon)
X2(squared)-4x+18=0 (answered by josmiceli)
What is the general form of the equation of a circle with its center at (-2, 1) and... (answered by josgarithmetic)
use the graph of y=x2+4x-5 a) without solving the equation or factoring, determine the... (answered by Earlsdon)