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16-06-2018
Mathematics

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The x intercepts of the graph of f(x)= x(x+1)(x-5)(x-7) are {0 or 1}, {-1 or 1}, {5 or -5} & {7 or -7}?

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16-06-2018

x-intercepts if f(x) = 0
f(x) = x(x + 1)(x - 5)(x - 7)
f(x) = 0 if x = 0 or x +1 = 0 or x - 5 = 0 or x - 7 =0
Answer: {-1 or 0 or 5 or 7}

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