Question 85166: I'm haveing trouble completing this equation...using Q. F.
x=-b+- sq. b^2-4ac/2a
2+2x-x^2=0
The answer is 1+- sq. 3 Answer by ptaylor(2198) (Show Source):
You can put this solution on YOUR website! Lets first multiply each term by -1 to get the quadratic in a more recognizable form:
quadratic in standard form where:
A=1
B=-2
C=-2
Solve using the quadratic formula and this equals:
which equals:
and this can be written as:
simplifying we get:
and this reduces to:
