20=8w*w

Solution for 20=8w*w equation:

Simplifying
20 = 8w * w

Multiply w * w
20 = 8w2

Solving
20 = 8w2

Solving for variable 'w'.

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

Add '-8w2' to each side of the equation.
20 + -8w2 = 8w2 + -8w2

Combine like terms: 8w2 + -8w2 = 0
20 + -8w2 = 0

Add '-20' to each side of the equation.
20 + -20 + -8w2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -8w2 = 0 + -20
-8w2 = 0 + -20

Combine like terms: 0 + -20 = -20
-8w2 = -20

Divide each side by '-8'.
w2 = 2.5

Simplifying
w2 = 2.5

Take the square root of each side:
w = {-1.58113883, 1.58113883}