Saturday
August 2, 2014

Homework Help: Roots and Pre-cal

Posted by raven 31791 on Wednesday, March 7, 2007 at 11:44am.

Find the roots of the function
f(x)= x^2 +2x+2

a)-1 + sq root of 2 and -1 - sq root of 2

b) -1 + i and -1 - i

c)-1 -2i sq root of 2 and -1-2i sq root of 2

d)-1 +2i and -1-2i

The i's are in italics but I can't .make them in italic here for some reason



completing the square:
x^2+2x +1= -2 +1
(x+1)^2=-1
x+1= +-i sqrt2

solve for x

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Pre Calculus - Find the roots of the function g(x)=x^3 +16x a)0,4i, -4i b)0,-4,-...
Algebra II - Which describes the number and type of roots of the equation x^2 -...
College Algebra--Still Confused - I have a few problems I need help with and ...
maths2 - Use the discriminant to determine the number of real roots the equation...
mathematics - Use the discriminant to determine the number of real roots the ...
College Algebra - I have a few problems I need help with and also do have ...
math - I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, ...
Algebra - 1.What is the nature of th roots of f(x) = x^2 + 4x+16-I think it is ...
math - Could you please solve so I can double check my answers for the practice ...
Calculus I - Find the derivative ** (sq root) y = (square root) x + (2nd sq root...

Search
Members