SOLUTION: Is this a trick question? I am not sure how to do these. Can some show me what steps I am suppose to take for this. Solve each equation: a. X2 = -100 b.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Is this a trick question? I am not sure how to do these. Can some show me what steps I am suppose to take for this. Solve each equation: a. X2 = -100 b.       Log On


   

Question 49886: Is this a trick question? I am not sure how to do these. Can some show me what steps I am suppose to take for this.
Solve each equation:
a. X2 = -100
b. 5X2 = -125
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a. X^2 = -100
There are no Real Numbers whose square is negative.
There are Complex Numbers that do the job.
For your problem
X= 10i or -10i where "i" is the square root of -1.
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b. 5X^2 = -125
X^2=-25
X=5i or X=-5i
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Cheers
Stan H.