Solve the equation.
-$$x ^ { 2 } = - 49$$
A) $\pm 7$
B) $\pm \mathrm { i } \sqrt { 7 }$
C) $\pm \sqrt { 7 }$
D) $\pm 7 \mathrm { i }$

Question

Quizplus · Accepted Answer

The equation $x^2 = -49$ can be solved by taking the square root of both sides, resulting in $x = \pm \sqrt{-49}$. Since the square root of a negative number involves the imaginary unit $i$, where $i^2 = -1$, the solution is $x = \pm 7i$.

Solve the Equation x2=−49x ^ { 2 } = - 49x2=−49

Solve the Equation $x ^ { 2 } = - 49$