Answer: \(x = 9 \text{ or } x = 6\)
Product \(ac = 54\), sum \(-15\): use \(-9\) and \(-6\).
\[x^2 - 9x - 6x + 54 = 0\]\[x(x - 9) - 6(x - 9) = 0\]\[(x - 9)(x - 6) = 0\]Equating each factor to zero gives the roots above.
Answer: \(x = 9 \text{ or } x = 6\)
Product \(ac = 54\), sum \(-15\): use \(-9\) and \(-6\).
\[x^2 - 9x - 6x + 54 = 0\]\[x(x - 9) - 6(x - 9) = 0\]\[(x - 9)(x - 6) = 0\]Equating each factor to zero gives the roots above.
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