Factor \({x}^{2}-15x+54\).
Ask: Which two numbers add up to \(-15\) and multiply to \(54\)?
Rewrite the expression using the above.
\[(x-9)(x-6)\]
Solve for \(x\).
Ask: When will \((x-9)(x-6)\) equal zero?
When \(x-9=0\) or \(x-6=0\)
Solve each of the 2 equations above.
\[x=9,6\]
