0=x^2+1.2x+36

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Solution for 0=x^2+1.2x+36 equation:


Simplifying
0 = x2 + 1.2x + 36

Reorder the terms:
0 = 36 + 1.2x + x2

Solving
0 = 36 + 1.2x + x2

Solving for variable 'x'.

Combine like terms: 0 + -36 = -36
-36 + -1.2x + -1x2 = 36 + 1.2x + x2 + -36 + -1.2x + -1x2

Reorder the terms:
-36 + -1.2x + -1x2 = 36 + -36 + 1.2x + -1.2x + x2 + -1x2

Combine like terms: 36 + -36 = 0
-36 + -1.2x + -1x2 = 0 + 1.2x + -1.2x + x2 + -1x2
-36 + -1.2x + -1x2 = 1.2x + -1.2x + x2 + -1x2

Combine like terms: 1.2x + -1.2x = 0.0
-36 + -1.2x + -1x2 = 0.0 + x2 + -1x2
-36 + -1.2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-36 + -1.2x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
36 + 1.2x + x2 = 0

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + 1.2x + -36 + x2 = 0 + -36

Reorder the terms:
36 + -36 + 1.2x + x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + 1.2x + x2 = 0 + -36
1.2x + x2 = 0 + -36

Combine like terms: 0 + -36 = -36
1.2x + x2 = -36

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = -36 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = -36 + 0.36

Combine like terms: -36 + 0.36 = -35.64
0.36 + 1.2x + x2 = -35.64

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = -35.64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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