3x^2-42x+158=0

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Solution for 3x^2-42x+158=0 equation:


Simplifying
3x2 + -42x + 158 = 0

Reorder the terms:
158 + -42x + 3x2 = 0

Solving
158 + -42x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
52.66666667 + -14x + x2 = 0

Move the constant term to the right:

Add '-52.66666667' to each side of the equation.
52.66666667 + -14x + -52.66666667 + x2 = 0 + -52.66666667

Reorder the terms:
52.66666667 + -52.66666667 + -14x + x2 = 0 + -52.66666667

Combine like terms: 52.66666667 + -52.66666667 = 0.00000000
0.00000000 + -14x + x2 = 0 + -52.66666667
-14x + x2 = 0 + -52.66666667

Combine like terms: 0 + -52.66666667 = -52.66666667
-14x + x2 = -52.66666667

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = -52.66666667 + 49

Reorder the terms:
49 + -14x + x2 = -52.66666667 + 49

Combine like terms: -52.66666667 + 49 = -3.66666667
49 + -14x + x2 = -3.66666667

Factor a perfect square on the left side:
(x + -7)(x + -7) = -3.66666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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