Question

r^2-6=-20

Answer 1

To solve the equation, isolate the variable. To do this, first add 6 to each side:

r^2 - 6 = -20
r^2 = -14

Now take the square root of each side to solve.

r = sqrt(-14)

Since the number under the radical is negative, you can also turn the answer into

r = i*sqrt(14) because the square root of -1 is i.

Answer 2

Thank you

Answer 3

You're welcome, anytime.