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4x2 - x - 5 = 0

4x2 + 4x - 5x - 5 = 0

4x(x + 1) - 5(x + 1) = 0

(4x - 5)(x + 1) = 0

4x - 5 = 0 or x + 1 = 0

4x = 5 or x = -1

x = 5/4 o x = -1

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Q: What is the solution to 4x squared minus x minus 5 equals 0?
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