What are the solutions to the equation r^2+81=0 ?

The solutions to the equation r^2+81=0 are r=9i,r=-9i

Find the zeros of r^2+81=0

The zeros of r^2+81=0 are r=9i,r=-9i

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r^{2} + 81 = 0

r = 9 i, r = - 9 i

Solution steps

r^{2} + 81 = 0

Move

81

to the right side

r^{2} = - 81

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

r = - 81, r = - - 81

- 81 = 9 i

- - 81 = - 9 i

r = 9 i, r = - 9 i

37 = 18 q + 1

0.05 y + 0.02 (6000 - y) = 270

\frac{18}{2}

2 (2 X - 2) + 3 X + 12 = 5 X + 10

9 + 4 w < 1

What are the solutions to the equation r^2+81=0 ?
The solutions to the equation r^2+81=0 are r=9i,r=-9i
Find the zeros of r^2+81=0
The zeros of r^2+81=0 are r=9i,r=-9i