Join the growing community of curious minds on IDNLearn.com. Our Q&A platform offers detailed and trustworthy answers to ensure you have the information you need.
x²+12x<-11
x²+12x+11<0
x²+12x+11=0
(x+11)(x+1)=0
x+11=0 x+1=0
x= -11 x= -1
Solution: ] -11 , -1 [