+0  
 
0
25
1
avatar

The parabolas defined by the equations y=-x^2-x+1 and y = x^2 + x - 3 intersect at points (a,b) and (c,d), where c >= a. What is c-a? Express your answer as a common fraction.

 Sep 10, 2021
 #1
avatar+34376 
+1

-x^2-x+1 = x^2 + x - 3

2x^2 + 2x-4 = 0

x^2 +x -4 = 0

(x-1)(x+2) = 0           x = 1 and -2                 1 - -2 = 3

 Sep 10, 2021

22 Online Users

avatar
avatar