Question

Discriminant for 2n^2+8n+1=-7

Answer 1

The given equation is

`\begin{gathered} 2n^2+8n+1=-7 \\ 2n^2+8n+1+7=0 \\ 2n^2+8n+8=0 \end{gathered}`

Where a = 2, b = 8, and c = 8.

The discriminant formula is

`D=b^2-4ac`

Let's replace the values

`D=(8)^2-4(2)(8)=64-64=0`

The equation has one real solution.