Flashcards: Finding Zeros

Which of the following represents a quadratic equation with its zeros at \(\displaystyle x=4\) and \(\displaystyle x=5\)?

\(\displaystyle x^2-x-9=0\)

\(\displaystyle x^2-9x-20=0\)

\(\displaystyle x^2-9x+20=0\)

\(\displaystyle x^2+x+9=0\)

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