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A solution to an equation that seems to be right,but when we check it (by substituting it into the original equation) we find it is not right

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i would say that Completing the square is a method that may be used for any quadratic equation.

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. If there is still a radical equation, repeat steps 1 and 2; otherwise, solve the resulting equation and check the answer in the original equation.

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. If there is still a radical equation, repeat steps 1 and 2; otherwise, solve the resulting equation and check the answer in the original equation.

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A solution to an equation that seems to be right,but when we check it (by substituting it into the original equation) we find it is not right

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Completing the square is a method that may be used for any quadratic equation.

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A solution to an equation that seems to be right,but when we check it (by substituting it into the original equation) we find it is not right

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a root, or solution, of an intermediate equation—an equation obtained in the process of solving a given equation—that is not a root of the given equation.

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An extraneous root can be defined as a value obtained. for an unknown in the solution of an equation which is not a. root of the equation.

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An "extraneous root" may be defined as a value obtained, for an unknown in the solution of an equation which is not a root of the equation.

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I would say the quadratic formula because the Quadratic formula is the method that is used most often for solving a quadratic equation.

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Completing the square is a method that may be used for any quadratic equation.

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solate the radical expression involving the variable.

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I’m order to solve a radical equation you need to isolate the radical expression involving the variable then raise both sides of the equation to the index of the radical.

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Isolate the radical expression involving the variable then Raise both sides of the equation to the index of the radical. If there is still a radical equation, repeat steps 1 and 2; otherwise, solve the resulting equation and check the answer in the original equation.