7x^2-28x+41=-7

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Solution for 7x^2-28x+41=-7 equation:


Simplifying
7x2 + -28x + 41 = -7

Reorder the terms:
41 + -28x + 7x2 = -7

Solving
41 + -28x + 7x2 = -7

Solving for variable 'x'.

Reorder the terms:
41 + 7 + -28x + 7x2 = -7 + 7

Combine like terms: 41 + 7 = 48
48 + -28x + 7x2 = -7 + 7

Combine like terms: -7 + 7 = 0
48 + -28x + 7x2 = 0

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

Divide each side by '7'.
6.857142857 + -4x + x2 = 0

Move the constant term to the right:

Add '-6.857142857' to each side of the equation.
6.857142857 + -4x + -6.857142857 + x2 = 0 + -6.857142857

Reorder the terms:
6.857142857 + -6.857142857 + -4x + x2 = 0 + -6.857142857

Combine like terms: 6.857142857 + -6.857142857 = 0.000000000
0.000000000 + -4x + x2 = 0 + -6.857142857
-4x + x2 = 0 + -6.857142857

Combine like terms: 0 + -6.857142857 = -6.857142857
-4x + x2 = -6.857142857

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -6.857142857 + 4

Reorder the terms:
4 + -4x + x2 = -6.857142857 + 4

Combine like terms: -6.857142857 + 4 = -2.857142857
4 + -4x + x2 = -2.857142857

Factor a perfect square on the left side:
(x + -2)(x + -2) = -2.857142857

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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