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Use the discriminant to determine the number of real solutions of the quadratic equation.

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Use the discriminant to determine the number of real solutions of the quadratic equation.

asked Jan 26, 2015 in TRIGONOMETRY by anonymous

1 Answer

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Step 1 :

The quadratic equation is image.

Compare the above equation with standard form of the quadratic equation .

image.

The discriminant is .

Substitute image in the discriminant.

image                 


Since the discriminant is positive, the quadratic equation has two distinct real solutions.

Solution :

The quadratic equation image has two distinct real solutions.

answered Jan 26, 2015 by lilly Expert

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