0.5+2=0.8y*0.3y

Solution for 0.5+2=0.8y*0.3y equation:

Simplifying
0.5 + 2 = 0.8y * 0.3y

Combine like terms: 0.5 + 2 = 2.5
2.5 = 0.8y * 0.3y

Reorder the terms for easier multiplication:
2.5 = 0.8 * 0.3y * y

Multiply 0.8 * 0.3
2.5 = 0.24y * y

Multiply y * y
2.5 = 0.24y2

Solving
2.5 = 0.24y2

Solving for variable 'y'.

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

Add '-0.24y2' to each side of the equation.
2.5 + -0.24y2 = 0.24y2 + -0.24y2

Combine like terms: 0.24y2 + -0.24y2 = 0.00
2.5 + -0.24y2 = 0.00

Add '-2.5' to each side of the equation.
2.5 + -2.5 + -0.24y2 = 0.00 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -0.24y2 = 0.00 + -2.5
-0.24y2 = 0.00 + -2.5

Combine like terms: 0.00 + -2.5 = -2.5
-0.24y2 = -2.5

Divide each side by '-0.24'.
y2 = 10.41666667

Simplifying
y2 = 10.41666667

Take the square root of each side:
y = {-3.227486122, 3.227486122}