Show that the statement IF x is a rea...

Show that the statement
IF x is a real number such that `x^3+4x=0` then x is 0 is true by
method of contrapositive

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Show that the statement IF x is a real number such that x^3+4x=0 then x is 0 is true by method of contradiction

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Show that the statement p: “If x is a real number such that x^3 + 4x = 0 , then x is 0” is true by method of contradiction.

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