y^2+4.8y+9.6=0

Solution for y^2+4.8y+9.6=0 equation:

Simplifying
y2 + 4.8y + 9.6 = 0

Reorder the terms:
9.6 + 4.8y + y2 = 0

Solving
9.6 + 4.8y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '-9.6' to each side of the equation.
9.6 + 4.8y + -9.6 + y2 = 0 + -9.6

Reorder the terms:
9.6 + -9.6 + 4.8y + y2 = 0 + -9.6

Combine like terms: 9.6 + -9.6 = 0.0
0.0 + 4.8y + y2 = 0 + -9.6
4.8y + y2 = 0 + -9.6

Combine like terms: 0 + -9.6 = -9.6
4.8y + y2 = -9.6

The y term is 4.8y.  Take half its coefficient (2.4).
Square it (5.76) and add it to both sides.

Add '5.76' to each side of the equation.
4.8y + 5.76 + y2 = -9.6 + 5.76

Reorder the terms:
5.76 + 4.8y + y2 = -9.6 + 5.76

Combine like terms: -9.6 + 5.76 = -3.84
5.76 + 4.8y + y2 = -3.84

Factor a perfect square on the left side:
(y + 2.4)(y + 2.4) = -3.84

Can't calculate square root of the right side.

The solution to this equation could not be determined.