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Determine the discriminant for the quadratic equation [tex]0 = 2x^2 + 3[/tex]. Based on the discriminant value, how many real number solutions does the equation have?

Discriminant: [tex]b^2 - 4ac[/tex]

A. 0
B. 1
C. 2
D. 24


Sagot :

To determine the discriminant for the quadratic equation [tex]\(0 = 2x^2 + 3\)[/tex] and the number of real number solutions:

1. Identify the coefficients [tex]\(a\)[/tex], [tex]\(b\)[/tex], and [tex]\(c\)[/tex] in the standard form of the quadratic equation [tex]\(ax^2 + bx + c = 0\)[/tex]:

Here, [tex]\(a = 2\)[/tex], [tex]\(b = 0\)[/tex], and [tex]\(c = 3\)[/tex].

2. The formula for the discriminant of a quadratic equation [tex]\(ax^2 + bx + c = 0\)[/tex] is given by:
[tex]\[ \Delta = b^2 - 4ac \][/tex]

3. Substitute the identified coefficients into the discriminant formula:
[tex]\[ \Delta = 0^2 - 4 \cdot 2 \cdot 3 \][/tex]

4. Simplify the expression:
[tex]\[ \Delta = 0 - 24 = -24 \][/tex]

Thus, the discriminant is [tex]\(-24\)[/tex].

5. Based on the value of the discriminant, we can determine the number of real number solutions for the quadratic equation:

- If the discriminant is greater than 0 ([tex]\(\Delta > 0\)[/tex]), there are two distinct real solutions.
- If the discriminant is equal to 0 ([tex]\(\Delta = 0\)[/tex]), there is exactly one real solution.
- If the discriminant is less than 0 ([tex]\(\Delta < 0\)[/tex]), there are no real solutions.

Since the discriminant [tex]\(\Delta = -24\)[/tex] is less than 0, the quadratic equation [tex]\(0 = 2x^2 + 3\)[/tex] has \emph{no real number solutions}.

Hence, the discriminant is [tex]\(-24\)[/tex], and the number of real number solutions is [tex]\(0\)[/tex].