SOLUTION: Need help solving this quadratic equation using the quadratic formula. {{{ -3x^2 - 5x + 2 = 0 }}} A.) {{{ -1 -2/3 }}} B.) {{{ -2 }}} {{{ 1/3 }}} C.) {{{ 5+i/-6 }}} {{{

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Need help solving this quadratic equation using the quadratic formula. {{{ -3x^2 - 5x + 2 = 0 }}} A.) {{{ -1 -2/3 }}} B.) {{{ -2 }}} {{{ 1/3 }}} C.) {{{ 5+i/-6 }}} {{{      Log On


   

Question 1032032: Need help solving this quadratic equation using the quadratic formula.
+-3x%5E2+-+5x+%2B+2+=+0+
A.) +-1+-2%2F3+
B.) +-2+ +1%2F3+
C.) +5%2Bi%2F-6+ +5-i%2F-6+
D.) +5%2B7i%2F-6+ +5-7i%2F-6+
Thanks!
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
From
+-3x%5E2+-+5x+%2B+2+=+0+
we can use
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
and get
x+=+%285+%2B-+sqrt%28%28-5%29%5E2-4%28-3%29%282%29%29%29%2F%282%2A%28-3%29%29
x+=+%285+%2B-+sqrt%2825+%2B+24%29%29%2F%28-6%29
x+=+%285+%2B-+7%29%2F-6
x+=+-2
and
x+=+1%2F3
Choice B.