To find the number of real number solutions for the equation \( x^2 - 15 = 0 \), we need to solve for \( x \).
The equation can be rewritten as:
\[ x^2 = 15 \]
To find the solutions, take the square root of both sides:
\[ x = \pm\sqrt{15} \]
This yields two solutions:
\[ x = \sqrt{15} \]
\[ x = -\sqrt{15} \]
Therefore, there are 2 real number solutions for the equation \( x^2 - 15 = 0 \).
So the correct answer is:
2
6.
Find the number of real number solutions for the equation.
x2 − 15 = 0
0
1
2
1 answer