Algebra 2: Section 5.1 - nth Roots and Rational Exponents

[wxrd_]

YOO WSG MAN, THIS REALLY HELPED FOR REAL, THANK YOU SO MUCH, SAVED ME LAST SECOND BEFORE MY FINAL

[cathytung]

Thank you so much for the video. very clear and helpful. quick question for the last example- why there is only 1 answer? could X=1 work?

[Yarkz.]

For the second problem of Example 4, wouldn't you have to add the plus or minus sign before the 9?