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

81d^2=18d+1=0

What is the number of real solutions?


Select the correct answer below:



0


1


2

Respuesta :

The answer is 1

Use the discramnt formula

[tex] {b {}^{2} - 4ac } [/tex]

Where a is 81, B is 18, and c is 1

We get

[tex]18 {}^{2} - 4(81)(1)[/tex]

We then get 324-324=0

Which equal 0. Since the discramnt produce 0, the number of solution is one and repeated.

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