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​Quadratic Equations can either be complete or incomplete. A quadratic equation is complete if no coefficient is equal to zero. While it is incomplete if either the coefficient b or c is equal to zero. When a is equal to zero then it is a linear equation.
Quadratic Equations can either be complete or incomplete. A quadratic equation is complete if no coefficient is equal to zero. While it is incomplete if either the coefficient b or c is equal to zero. When a is equal to zero then it is a linear equation.