SOLUTION: {{{5x^2 + 9x - 2 = 0}}}

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: {{{5x^2 + 9x - 2 = 0}}}      Log On


   

Question 740: 5x%5E2+%2B+9x+-+2+=+0
Answer by arden42(16) About Me  (Show Source):
You can put this solution on YOUR website!
The easiest way to solve this equation is by using the quadratic formula:
x+=+%28-9+%2B-+sqrt%28+9%5E2-4%2A5%2A%28-2%29+%29%29%2F%282%2A5%29+
x=+%28-9+%2B-+sqrt%2881%2B40%29%29%2F10
x=+%28-9+%2B-+11%29%2F10
x=+2%2F10,x=-20%2F10
x=1%2F5,x=-2