SOLUTION: x^2+3x-6 x=-4

Algebra ->  Expressions -> SOLUTION: x^2+3x-6 x=-4      Log On


   

Question 706399: x^2+3x-6 x=-4
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
With this x^2+3x-6 x=-4 we combine like terms and add 4:
x^2-3x+4=0
Factor this using quadratic formula:
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%283+%2B-+sqrt%28+9-4%2A1%2A4+%29%29%2F%282%2A1%29+
x+=+%283+%2B-+sqrt-7%29%2F2+
We have an imaginary number written as:
x = (3+-i sqrt 7 )/2
Make sense?
RJ
www.math-unlock.com