Solve each inequality X2 5x 14 Solutiona x2 5x 14
Solve each inequality. X^2 - 5x - 14
Solution
a) x^2 -5x -14<0
x^2 -7x +2x -14 <0
x(x-7) +2(x-7)<0
(x-7)(x+2)<0
-2<x<7 is the solution set
b) (x-7)/(x+2)>=0
x-7 is zero for x =7
x-7 is negative for x<7
x-7 is positive for x >7
x+2 is zero for x=-2
x+2 is negative for x<-2
x+2 is positive for x>-2
(-infinity,-2) U (7,infinity) is solution set
