0=4.9x^2+12x+30

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Solution for 0=4.9x^2+12x+30 equation:


Simplifying
0 = 4.9x2 + 12x + 30

Reorder the terms:
0 = 30 + 12x + 4.9x2

Solving
0 = 30 + 12x + 4.9x2

Solving for variable 'x'.

Combine like terms: 0 + -30 = -30
-30 + -12x + -4.9x2 = 30 + 12x + 4.9x2 + -30 + -12x + -4.9x2

Reorder the terms:
-30 + -12x + -4.9x2 = 30 + -30 + 12x + -12x + 4.9x2 + -4.9x2

Combine like terms: 30 + -30 = 0
-30 + -12x + -4.9x2 = 0 + 12x + -12x + 4.9x2 + -4.9x2
-30 + -12x + -4.9x2 = 12x + -12x + 4.9x2 + -4.9x2

Combine like terms: 12x + -12x = 0
-30 + -12x + -4.9x2 = 0 + 4.9x2 + -4.9x2
-30 + -12x + -4.9x2 = 4.9x2 + -4.9x2

Combine like terms: 4.9x2 + -4.9x2 = 0.0
-30 + -12x + -4.9x2 = 0.0

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

Divide each side by '-4.9'.
6.12244898 + 2.448979592x + x2 = 0

Move the constant term to the right:

Add '-6.12244898' to each side of the equation.
6.12244898 + 2.448979592x + -6.12244898 + x2 = 0 + -6.12244898

Reorder the terms:
6.12244898 + -6.12244898 + 2.448979592x + x2 = 0 + -6.12244898

Combine like terms: 6.12244898 + -6.12244898 = 0.00000000
0.00000000 + 2.448979592x + x2 = 0 + -6.12244898
2.448979592x + x2 = 0 + -6.12244898

Combine like terms: 0 + -6.12244898 = -6.12244898
2.448979592x + x2 = -6.12244898

The x term is 2.448979592x.  Take half its coefficient (1.224489796).
Square it (1.499375261) and add it to both sides.

Add '1.499375261' to each side of the equation.
2.448979592x + 1.499375261 + x2 = -6.12244898 + 1.499375261

Reorder the terms:
1.499375261 + 2.448979592x + x2 = -6.12244898 + 1.499375261

Combine like terms: -6.12244898 + 1.499375261 = -4.623073719
1.499375261 + 2.448979592x + x2 = -4.623073719

Factor a perfect square on the left side:
(x + 1.224489796)(x + 1.224489796) = -4.623073719

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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