Question

Practice: Organizing Information

Complete the chart.
The first column shows the exponential expression (1 and 81)
For the second column, I need to find the square roots.
For the last column, I need to find the principal square root.

Answer 1

√1 = +1 and -1. The principal root is +1.

√81 = +9 and -9. The principal root is +9.

______
The principal root of a positive real number is a positive real number.
The principal odd root (3rd, 5th, 7th, and so on) of a negative real number is a negative real number.