(3-x)(3-x)+4x^2+19=0

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Solution for (3-x)(3-x)+4x^2+19=0 equation:


Simplifying
(3 + -1x)(3 + -1x) + 4x2 + 19 = 0

Multiply (3 + -1x) * (3 + -1x)
(3(3 + -1x) + -1x * (3 + -1x)) + 4x2 + 19 = 0
((3 * 3 + -1x * 3) + -1x * (3 + -1x)) + 4x2 + 19 = 0
((9 + -3x) + -1x * (3 + -1x)) + 4x2 + 19 = 0
(9 + -3x + (3 * -1x + -1x * -1x)) + 4x2 + 19 = 0
(9 + -3x + (-3x + 1x2)) + 4x2 + 19 = 0

Combine like terms: -3x + -3x = -6x
(9 + -6x + 1x2) + 4x2 + 19 = 0

Reorder the terms:
9 + 19 + -6x + 1x2 + 4x2 = 0

Combine like terms: 9 + 19 = 28
28 + -6x + 1x2 + 4x2 = 0

Combine like terms: 1x2 + 4x2 = 5x2
28 + -6x + 5x2 = 0

Solving
28 + -6x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
5.6 + -1.2x + x2 = 0

Move the constant term to the right:

Add '-5.6' to each side of the equation.
5.6 + -1.2x + -5.6 + x2 = 0 + -5.6

Reorder the terms:
5.6 + -5.6 + -1.2x + x2 = 0 + -5.6

Combine like terms: 5.6 + -5.6 = 0.0
0.0 + -1.2x + x2 = 0 + -5.6
-1.2x + x2 = 0 + -5.6

Combine like terms: 0 + -5.6 = -5.6
-1.2x + x2 = -5.6

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 = -5.6 + 0.36

Reorder the terms:
0.36 + -1.2x + x2 = -5.6 + 0.36

Combine like terms: -5.6 + 0.36 = -5.24
0.36 + -1.2x + x2 = -5.24

Factor a perfect square on the left side:
(x + -0.6)(x + -0.6) = -5.24

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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