Question 1123169
x^2+8x-7<0


roots {{{(-8+- sqrt(64+4*7))/2=(-8+- sqrt(92))/2=(-8+- 2*sqrt(23))/2}}}

{{{-4+- sqrt(23)}}}


The inequality given will be true BETWEEN the roots.

{{{highlight(-4-sqrt(23)<x<-4+sqrt(23))}}}