Solving Quadratics by Square Roots

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What does it mean if a quadratic equation has imaginary solutions?

Back

It means that the solutions involve the imaginary unit 'i', which represents the square root of a negative number.

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CCSS.HSN.CN.A.1

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Back

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CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

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Back

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CCSS.8.EE.A.2

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CCSS.8.EE.A.2

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Back

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CCSS.HSA-REI.B.4B

Front

What is the square root of a negative number?

Back

Front

What is the standard form of a quadratic equation?

Back

Front

What is the discriminant in a quadratic equation?

Back

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CCSS.HSA-REI.B.4B

Front

What does a positive discriminant indicate?

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It indicates that the quadratic equation has two distinct real solutions.

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CCSS.HSA-REI.B.4B

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What does a zero discriminant indicate?

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It indicates that the quadratic equation has exactly one real solution (a repeated root).

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CCSS.HSA-REI.B.4B