Solve the equation x² − 5x + 6 = 0

Answer: \(\boxed{x=2 \text{ or } x=3}\)

Factor the quadratic: \[ x^2-5x+6=(x-2)(x-3) \]

So: \[ (x-2)(x-3)=0 \]

A product is zero when at least one factor is zero: \[ x-2=0 \Rightarrow x=2 \] \[ x-3=0 \Rightarrow x=3 \]

Check: \[ 2^2-5\cdot2+6=4-10+6=0 \] \[ 3^2-5\cdot3+6=9-15+6=0 \]