2x(x+-2)=7x-4(2+x)

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Solution for 2x(x+-2)=7x-4(2+x) equation:


Simplifying
2x(x + -2) = 7x + -4(2 + x)

Reorder the terms:
2x(-2 + x) = 7x + -4(2 + x)
(-2 * 2x + x * 2x) = 7x + -4(2 + x)
(-4x + 2x2) = 7x + -4(2 + x)
-4x + 2x2 = 7x + (2 * -4 + x * -4)
-4x + 2x2 = 7x + (-8 + -4x)

Reorder the terms:
-4x + 2x2 = -8 + 7x + -4x

Combine like terms: 7x + -4x = 3x
-4x + 2x2 = -8 + 3x

Solving
-4x + 2x2 = -8 + 3x

Solving for variable 'x'.

Reorder the terms:
8 + -4x + -3x + 2x2 = -8 + 3x + 8 + -3x

Combine like terms: -4x + -3x = -7x
8 + -7x + 2x2 = -8 + 3x + 8 + -3x

Reorder the terms:
8 + -7x + 2x2 = -8 + 8 + 3x + -3x

Combine like terms: -8 + 8 = 0
8 + -7x + 2x2 = 0 + 3x + -3x
8 + -7x + 2x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
8 + -7x + 2x2 = 0

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

Divide each side by '2'.
4 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -3.5x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -3.5x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -3.5x + x2 = 0 + -4
-3.5x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-3.5x + x2 = -4

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -4 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -4 + 3.0625

Combine like terms: -4 + 3.0625 = -0.9375
3.0625 + -3.5x + x2 = -0.9375

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = -0.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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