Questions: Use the quadratic formula to find the complex solutions of the quadratic equation. Give your answer(s) in a bi form. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
x=
Transcript text: Use the quadratic formula to find the complex solutions of the quadratic equation. Give your answer(s) in a bi form. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
\[
x=\square
\]
Solution
Solution Steps
To find the complex solutions of a quadratic equation using the quadratic formula, follow these steps:
Identify the coefficients \(a\), \(b\), and \(c\) from the quadratic equation in the form \(ax^2 + bx + c = 0\).
Use the quadratic formula: \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\).
Calculate the discriminant \(b^2 - 4ac\). If it is negative, the solutions will be complex.
Compute the solutions using the formula, ensuring to handle the square root of a negative number to find the imaginary part.
Step 1: Identify Coefficients
The quadratic equation is given in the form \( ax^2 + bx + c = 0 \). For our case, we have:
\( a = 1 \)
\( b = 2 \)
\( c = 3 \)
Step 2: Calculate the Discriminant
The discriminant \( D \) is calculated using the formula:
\[
D = b^2 - 4ac
\]
Substituting the values:
\[
D = 2^2 - 4 \cdot 1 \cdot 3 = 4 - 12 = -8
\]
Step 3: Determine the Nature of the Roots
Since the discriminant \( D = -8 \) is negative, the quadratic equation has complex solutions.
Step 4: Apply the Quadratic Formula
The quadratic formula is given by:
\[
x = \frac{-b \pm \sqrt{D}}{2a}
\]
Substituting the values:
\[
x = \frac{-2 \pm \sqrt{-8}}{2 \cdot 1}
\]
This simplifies to:
\[
x = \frac{-2 \pm 2i\sqrt{2}}{2}
\]
Thus, we can further simplify:
\[
x = -1 \pm i\sqrt{2}
\]
Final Answer
The complex solutions of the quadratic equation are:
\[
\boxed{x = -1 + i\sqrt{2}, -1 - i\sqrt{2}}
\]