x-(0.35(x^2))=4.5

Solution for x-(0.35(x^2))=4.5 equation:

Simplifying
x + -1(0.35(x2)) = 4.5

Remove parenthesis around (0.35x2)
x + -1 * 0.35x2 = 4.5

Multiply -1 * 0.35
x + -0.35x2 = 4.5

Solving
x + -0.35x2 = 4.5

Solving for variable 'x'.

Reorder the terms:
-4.5 + x + -0.35x2 = 4.5 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
-4.5 + x + -0.35x2 = 0.0

Begin completing the square.  Divide all terms by
-0.35 the coefficient of the squared term: 

Divide each side by '-0.35'.
12.85714286 + -2.857142857x + x2 = 0

Move the constant term to the right:

Add '-12.85714286' to each side of the equation.
12.85714286 + -2.857142857x + -12.85714286 + x2 = 0 + -12.85714286

Reorder the terms:
12.85714286 + -12.85714286 + -2.857142857x + x2 = 0 + -12.85714286

Combine like terms: 12.85714286 + -12.85714286 = 0.00000000
0.00000000 + -2.857142857x + x2 = 0 + -12.85714286
-2.857142857x + x2 = 0 + -12.85714286

Combine like terms: 0 + -12.85714286 = -12.85714286
-2.857142857x + x2 = -12.85714286

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-2.857142857x + 0.25 + x2 = -12.85714286 + 0.25

Reorder the terms:
0.25 + -2.857142857x + x2 = -12.85714286 + 0.25

Combine like terms: -12.85714286 + 0.25 = -12.60714286
0.25 + -2.857142857x + x2 = -12.60714286

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -12.60714286

Can't calculate square root of the right side.

The solution to this equation could not be determined.