while my guitar gently weeps says:solve x=x^2+2
Encarta® Instant Answers says:Equation Solver:
Let's solve the quadratic equation:
x = x^2+2
First we need to put the equation in the form:
ax^2 + bx + c = 0
For this, we set the equation to equal 0, and arrange the terms from the highest exponent to the lowest:
-x^2+x-2 = 0
We have:
a=-1 b=1 c=-2
We can now apply the quadratic formula:
x = ( -b ± √(b²-4ac) ) / 2a
We find two solutions (in the set of complex numbers):
x=0.5 + -1.3228756555323*i or x=0.5 - -1.3228756555323*i
This stuff is just great!!!
# posted by masquerader @ 12:40 ::