392=I^2*8

Solution for 392=I^2*8 equation:

Simplifying
392 = I2 * 8

Reorder the terms for easier multiplication:
392 = 8I2

Solving
392 = 8I2

Solving for variable 'I'.

Move all terms containing I to the left, all other terms to the right.

Add '-8I2' to each side of the equation.
392 + -8I2 = 8I2 + -8I2

Combine like terms: 8I2 + -8I2 = 0
392 + -8I2 = 0

Add '-392' to each side of the equation.
392 + -392 + -8I2 = 0 + -392

Combine like terms: 392 + -392 = 0
0 + -8I2 = 0 + -392
-8I2 = 0 + -392

Combine like terms: 0 + -392 = -392
-8I2 = -392

Divide each side by '-8'.
I2 = 49

Simplifying
I2 = 49

Take the square root of each side:
I = {-7, 7}