H2 Maths 1.3 - Rational Inequality via Sign Chart

What you will learn

• Solve (3 - x) / (x^2 - 4) < 0 by tracking the sign of each factor across the number line.
• Critical points: x = 3 (numerator zero), x = +/- 2 (denominator zero, excluded from the solution).
• Build a sign chart on the four intervals and pick those where the fraction is negative.