SOLUTION: Find the roots of each quadratic equation without making a table or a graph. y=x^2+4x-5

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Find the roots of each quadratic equation without making a table or a graph. y=x^2+4x-5      Log On


   

Question 307826: Find the roots of each quadratic equation without making a table or a graph.
y=x^2+4x-5
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
factoring ___ y = (x+5)(x-1)

0 = (x+5)(x-1)

0 = x + 5 ___ -5 = x

0 = x - 1 ___ 1 = x

roots are -5 and 1