Questions: Find the real solutions, if any, using the quadratic formula.
5x^2 - 13x + 6 = 0
Select the correct choice below and fill in any answer boxes in your choice.
A. The solution set is
(Simplify your answer. Use a comma to separate answers as needed.)
B. The solution is not a real number.
Transcript text: Find the real solutions, if any, using the quadratic formula.
\[
5 x^{2}-13 x+6=0
\]
Select the correct choice below and fill in any answer boxes in your choice.
A. The solution set is $\square$ $\}$
(Simplify your answer. Use a comma to separate answers as needed.)
B. The solution is not a real number.
Solution
Solution Steps
To find the real solutions of the quadratic equation \(5x^2 - 13x + 6 = 0\), we can use the quadratic formula, which is given by:
\[
x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\]
where \(a\), \(b\), and \(c\) are the coefficients of the quadratic equation \(ax^2 + bx + c = 0\). In this case, \(a = 5\), \(b = -13\), and \(c = 6\). We will calculate the discriminant \(b^2 - 4ac\) to determine if the solutions are real. If the discriminant is non-negative, we will compute the solutions using the quadratic formula.
Step 1: Identify the Coefficients
The given quadratic equation is \(5x^2 - 13x + 6 = 0\). The coefficients are:
\(a = 5\)
\(b = -13\)
\(c = 6\)
Step 2: Calculate the Discriminant
The discriminant \(\Delta\) of a quadratic equation \(ax^2 + bx + c = 0\) is given by:
\[
\Delta = b^2 - 4ac
\]
Substituting the values of \(a\), \(b\), and \(c\):
\[
\Delta = (-13)^2 - 4 \times 5 \times 6 = 169 - 120 = 49
\]
Step 3: Determine the Nature of the Roots
Since the discriminant \(\Delta = 49\) is positive, the quadratic equation has two distinct real roots.
Step 4: Apply the Quadratic Formula
The quadratic formula is:
\[
x = \frac{-b \pm \sqrt{\Delta}}{2a}
\]
Substituting the values of \(b\), \(\Delta\), and \(a\):
\[
x = \frac{-(-13) \pm \sqrt{49}}{2 \times 5} = \frac{13 \pm 7}{10}
\]