To solve the quadratic equation \(x^2 + x + 0.25 = 0\) using the perfect square trinomial pattern, we can rewrite it in the form \((x + a)^2 = b\).
First, we notice that the equation can be rearranged as follows:
- Recognize that \(0.25\) is \((0.5)^2\).
- The given expression can be rewritten as:
\[ x^2 + x + (0.5)^2 = 0 \]
- Now we can identify since our equation matches the pattern of a perfect square trinomial, we can rewrite it:
\[ (x + 0.5)^2 = 0 \]
- Now, take the square root of both sides:
\[ x + 0.5 = 0 \]
- Solving for \(x\):
\[ x = -0.5 \]
Thus, the solution to the equation \(x^2 + x + 0.25 = 0\) is:
\[ x = -0.5 \]
So the correct response from the options provided is:
x = -0.5 (x equals negative 0.5)