Saturday

February 28, 2015

February 28, 2015

Posted by **Kiley** on Monday, November 3, 2008 at 6:17pm.

x^2-x+2=0

is 1+9i/2 the correct answer?

- Algebra 2 -
**DanH**, Monday, November 3, 2008 at 6:45pmNo, that is not the answer I get when I plug in to the quadratic formula.

I get

(1 + sqrt7i)/2

and

(1 - sqrt7i)/2

Do you understand how I got this?

- Algebra 2 -
**Kiley**, Monday, November 3, 2008 at 6:52pmWhere does the seven come from?

- Algebra 2 -
- Algebra 2 -
**DanH**, Monday, November 3, 2008 at 7:01pmsqrt(b^2 - 4ac).

b is -1 and a is 1 and c is 2.

So, sqrt(b^2 - 4ac) is

sqrt(-7), or (sqrt7)i.

- Algebra 2 -
**Kiley**, Monday, November 3, 2008 at 7:09pmohhhh! okay thank you!

- Algebra 2 -
**DanH**, Monday, November 3, 2008 at 7:13pmYou're welcome

- Algebra 2 -

**Answer this Question**

**Related Questions**

Algebra - Hi this question was already asked but there is still no correct ...

Algebra 2 - 1. Solve the following for x. 3-(x+(-4))= 2x-6+5x I figured that the...

Algebra - I can't seem to solve this for x correctly...I got 128 over 55 as an ...

math, beginning algebra - can someone correct this for me. Directions: Solve ...

Algebra - I'm not sure if I have this correct I have to solve each literal ...

Algebra II - Please check answers: Use the equation of the exponential function ...

math, correction plz - Can someone correct these for me.PLZ Problem#1 Directions...

Algebra - Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My ...

Algebra - Is this correct? Rewrite as an equivalent exponential equation. Do not...

Algebra - I am trying to find out if my answer's are correct. Can someone please...