4x-2x(2x-3)=7

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Solution for 4x-2x(2x-3)=7 equation:


Simplifying
4x + -2x(2x + -3) = 7

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

Combine like terms: 4x + 6x = 10x
10x + -4x2 = 7

Solving
10x + -4x2 = 7

Solving for variable 'x'.

Reorder the terms:
-7 + 10x + -4x2 = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + 10x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
1.75 + -2.5x + x2 = 0

Move the constant term to the right:

Add '-1.75' to each side of the equation.
1.75 + -2.5x + -1.75 + x2 = 0 + -1.75

Reorder the terms:
1.75 + -1.75 + -2.5x + x2 = 0 + -1.75

Combine like terms: 1.75 + -1.75 = 0.00
0.00 + -2.5x + x2 = 0 + -1.75
-2.5x + x2 = 0 + -1.75

Combine like terms: 0 + -1.75 = -1.75
-2.5x + x2 = -1.75

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = -1.75 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = -1.75 + 1.5625

Combine like terms: -1.75 + 1.5625 = -0.1875
1.5625 + -2.5x + x2 = -0.1875

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = -0.1875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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