Sign table and solving x²(ax+b)>0 or x²(ax+b)<0
Sign table and solving 1/(ax+b)≥0 ou 1/(ax+b)≤0
Sign table and solving x/(ax+b) > 0 or x/(ax+b) < 0
Sign table and solving x/(ax+b) ≥ 0 or x/(ax+b) ≤ 0
Sign table and solving x²/(ax+b)≥0 ou x²/(ax+b)≤0
Sign table and solving (ax+b)/(cx+d) ≥ 0 or (ax+b)/(cx+d) ≤ 0