Solve the quadratic by factorising and select the correct solution.
\( \text{Solve: } x^2 - 11x + 30 = 0 \)
Choose one option:
Multiply to the constant term, sum to the middle coefficient.
Factor: \((x - 5)(x - 6) = 0\) gives roots \(x = 5\) and \(x = 6\).
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