A quadratic equation has roots 4 and -1. What is the quadratic equation in standard form?

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A. x² - 3x - 4 = 0

B. x² + 3x - 4 = 0

C. x² - 3x + 4 = 0

D. x² + 3x + 4 = 0

E. None of the above

Answer: A. x² - 3x - 4 = 0

The quadratic equation can be formed using the roots: (x - 4)(x + 1) = 0, which expands to x² - 3x - 4 = 0.

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