Question: Find the two points on the curve y = x4 - 2x2 - x that have a common tangent line.

Find the two points on the curve y = x4 - 2x2 - x that have a common tangent line.

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y x 4 2x 2 x y 4x 3 4x 1 The equation of the tangent line at x a is y a 4 2a 2 a 4a 3 4a 1 x a or y ... View full answer

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