Use the square root symbol to solve x2=−64.(1 point)
Responses
no real solution
no real solution
x=−8
x equals negative 8
x=±8
x equals plus or minus 8
x=8
x= 8
x equals 8
To solve the equation x^2 = -64 using the square root symbol, we need to find the values of x that satisfy the equation.
First, let's take the square root of both sides of the equation:
√(x^2) = √(-64)
The square root of x^2 is |x| (absolute value of x), so we have:
|x| = √(-64)
Now, the square root of any negative number is not a real number. Therefore, there is no real value of x that satisfies the equation x^2 = -64. Hence, the answer is "no real solution."
However, if we consider complex numbers, the square root of -64 is ±8i, where i is the imaginary unit (√(-1)).
Therefore, in the realm of complex numbers, we can say x = ±8i, which means x equals plus or minus 8i.
So the correct answers are:
- "No real solution"
- "x equals plus or minus 8i"