=>3•lx+1l-lx+1l=11-5
=>2•lx+1l=6
=>lx+1l=6:2
=>lx+1l=3
=>x+1=3
x+1=-3
=>x=3-1
x=-3-1
=>x=2
x=-4
x¹=-4
x²=2
SPER CA TE-AM AJUTAT :)