Question
Show that the equation has a real root other than
Answer :
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Consider the function ( f(x) = x^3 + x^2 - 2x - 2 ). We are asked to show it has a real root other than ( x = -1 ). First, check if ( x = -1 ) is a root: [ f(-1) = (-1)^3 + (-1)^2 - 2(-1) - 2
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