Question

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

Answer 1

The answer is 1

Use the discramnt formula

${b {}^{2} - 4ac }$

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

We get

$18 {}^{2} - 4(81)(1)$

We then get 324-324=0

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