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Use the Quadratic Formula to solve the quadratic equation.

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Use the Quadratic Formula to solve the quadratic equation.

4x^2 + 16x + 15 = 0

quadratic-equation
complex-roots

asked Jan 26, 2015 in TRIGONOMETRY by anonymous

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1 Answer

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Step 1:

The quadratic equation is .

The standard form of quadratic equation is .

Compare the above two equations,

.

The roots of the quadratic equation is: .

Substitute in above equation.

The roots are

Solution :

The roots are

answered Jan 26, 2015 by james Pupil

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