Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Thank you for watching the video.

To unlock all 5,300 videos, start your free trial.

Introduction to Imaginary Numbers - Problem 5

Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Share

Up until now, if you were faced with the square root of a negative number, you would have written "no real solutions." This is true- but now we will begin to look at imaginary numbers based on the definition that i = square root of negative one. Along those lines, i squared is negative one. Your goal in simplifying square roots of negative expressions is to re-write them as negative one times something. From there, simplify as you would a non-negative radical by looking for perfect square factors.

Transcript Coming Soon!