SOLUTION: How do I work out the X intercepts of the equation -x^2+6x+5

Algebra ->  Coordinate-system -> SOLUTION: How do I work out the X intercepts of the equation -x^2+6x+5      Log On


   

Question 1142880: How do I work out the X intercepts of the equation -x^2+6x+5
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
-%28x%5E2-6x-5%29=0
-%28x_plusorminus_something%29%28x_minusorplus_someelse%29=0
Is that factorable?

x-intercepts
%286%2B-+sqrt%2836-4%2A%28-5%29%29%29%2F2
%286%2B-+sqrt%2856%29%29%2F2
%286%2B-+sqrt%284%2A14%29%29%2F2
%286%2B-+2%2Asqrt%2814%29%29%2F2
highlight%283%2B-+sqrt%2814%29%29----------the x-intercepts