-4.9x^2+3x-1.8=0

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Solution for -4.9x^2+3x-1.8=0 equation: 


Simplifying
-4.9x2 + 3x + -1.8 = 0

Reorder the terms:
-1.8 + 3x + -4.9x2 = 0

Solving
-1.8 + 3x + -4.9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
0.3673469388 + -0.612244898x + x2 = 0

Move the constant term to the right:

Add '-0.3673469388' to each side of the equation.
0.3673469388 + -0.612244898x + -0.3673469388 + x2 = 0 + -0.3673469388

Reorder the terms:
0.3673469388 + -0.3673469388 + -0.612244898x + x2 = 0 + -0.3673469388

Combine like terms: 0.3673469388 + -0.3673469388 = 0.0000000000
0.0000000000 + -0.612244898x + x2 = 0 + -0.3673469388
-0.612244898x + x2 = 0 + -0.3673469388

Combine like terms: 0 + -0.3673469388 = -0.3673469388
-0.612244898x + x2 = -0.3673469388

The x term is -0.612244898x.  Take half its coefficient (-0.306122449).
Square it (0.09371095378) and add it to both sides.

Add '0.09371095378' to each side of the equation.
-0.612244898x + 0.09371095378 + x2 = -0.3673469388 + 0.09371095378

Reorder the terms:
0.09371095378 + -0.612244898x + x2 = -0.3673469388 + 0.09371095378

Combine like terms: -0.3673469388 + 0.09371095378 = -0.27363598502
0.09371095378 + -0.612244898x + x2 = -0.27363598502

Factor a perfect square on the left side:
(x + -0.306122449)(x + -0.306122449) = -0.27363598502

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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