5-2(3x^2-2x)=x^2+7-2x^2

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Solution for 5-2(3x^2-2x)=x^2+7-2x^2 equation:


Simplifying
5 + -2(3x2 + -2x) = x2 + 7 + -2x2

Reorder the terms:
5 + -2(-2x + 3x2) = x2 + 7 + -2x2
5 + (-2x * -2 + 3x2 * -2) = x2 + 7 + -2x2
5 + (4x + -6x2) = x2 + 7 + -2x2

Reorder the terms:
5 + 4x + -6x2 = 7 + x2 + -2x2

Combine like terms: x2 + -2x2 = -1x2
5 + 4x + -6x2 = 7 + -1x2

Solving
5 + 4x + -6x2 = 7 + -1x2

Solving for variable 'x'.

Reorder the terms:
5 + -7 + 4x + -6x2 + x2 = 7 + -1x2 + -7 + x2

Combine like terms: 5 + -7 = -2
-2 + 4x + -6x2 + x2 = 7 + -1x2 + -7 + x2

Combine like terms: -6x2 + x2 = -5x2
-2 + 4x + -5x2 = 7 + -1x2 + -7 + x2

Reorder the terms:
-2 + 4x + -5x2 = 7 + -7 + -1x2 + x2

Combine like terms: 7 + -7 = 0
-2 + 4x + -5x2 = 0 + -1x2 + x2
-2 + 4x + -5x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-2 + 4x + -5x2 = 0

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

Divide each side by '-5'.
0.4 + -0.8x + x2 = 0

Move the constant term to the right:

Add '-0.4' to each side of the equation.
0.4 + -0.8x + -0.4 + x2 = 0 + -0.4

Reorder the terms:
0.4 + -0.4 + -0.8x + x2 = 0 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + -0.8x + x2 = 0 + -0.4
-0.8x + x2 = 0 + -0.4

Combine like terms: 0 + -0.4 = -0.4
-0.8x + x2 = -0.4

The x term is -0.8x.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8x + 0.16 + x2 = -0.4 + 0.16

Reorder the terms:
0.16 + -0.8x + x2 = -0.4 + 0.16

Combine like terms: -0.4 + 0.16 = -0.24
0.16 + -0.8x + x2 = -0.24

Factor a perfect square on the left side:
(x + -0.4)(x + -0.4) = -0.24

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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