3x(2x-1)+4(x-2)=

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Solution for 3x(2x-1)+4(x-2)= equation:


Simplifying
3x(2x + -1) + 4(x + -2) = 0

Reorder the terms:
3x(-1 + 2x) + 4(x + -2) = 0
(-1 * 3x + 2x * 3x) + 4(x + -2) = 0
(-3x + 6x2) + 4(x + -2) = 0

Reorder the terms:
-3x + 6x2 + 4(-2 + x) = 0
-3x + 6x2 + (-2 * 4 + x * 4) = 0
-3x + 6x2 + (-8 + 4x) = 0

Reorder the terms:
-8 + -3x + 4x + 6x2 = 0

Combine like terms: -3x + 4x = 1x
-8 + 1x + 6x2 = 0

Solving
-8 + 1x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-1.333333333 + 0.1666666667x + x2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + 0.1666666667x + 1.333333333 + x2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + 0.1666666667x + x2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + 0.1666666667x + x2 = 0 + 1.333333333
0.1666666667x + x2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
0.1666666667x + x2 = 1.333333333

The x term is 0.1666666667x.  Take half its coefficient (0.08333333335).
Square it (0.006944444447) and add it to both sides.

Add '0.006944444447' to each side of the equation.
0.1666666667x + 0.006944444447 + x2 = 1.333333333 + 0.006944444447

Reorder the terms:
0.006944444447 + 0.1666666667x + x2 = 1.333333333 + 0.006944444447

Combine like terms: 1.333333333 + 0.006944444447 = 1.340277777447
0.006944444447 + 0.1666666667x + x2 = 1.340277777447

Factor a perfect square on the left side:
(x + 0.08333333335)(x + 0.08333333335) = 1.340277777447

Calculate the square root of the right side: 1.157703666

Break this problem into two subproblems by setting 
(x + 0.08333333335) equal to 1.157703666 and -1.157703666.

Subproblem 1

x + 0.08333333335 = 1.157703666 Simplifying x + 0.08333333335 = 1.157703666 Reorder the terms: 0.08333333335 + x = 1.157703666 Solving 0.08333333335 + x = 1.157703666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.08333333335' to each side of the equation. 0.08333333335 + -0.08333333335 + x = 1.157703666 + -0.08333333335 Combine like terms: 0.08333333335 + -0.08333333335 = 0.00000000000 0.00000000000 + x = 1.157703666 + -0.08333333335 x = 1.157703666 + -0.08333333335 Combine like terms: 1.157703666 + -0.08333333335 = 1.07437033265 x = 1.07437033265 Simplifying x = 1.07437033265

Subproblem 2

x + 0.08333333335 = -1.157703666 Simplifying x + 0.08333333335 = -1.157703666 Reorder the terms: 0.08333333335 + x = -1.157703666 Solving 0.08333333335 + x = -1.157703666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.08333333335' to each side of the equation. 0.08333333335 + -0.08333333335 + x = -1.157703666 + -0.08333333335 Combine like terms: 0.08333333335 + -0.08333333335 = 0.00000000000 0.00000000000 + x = -1.157703666 + -0.08333333335 x = -1.157703666 + -0.08333333335 Combine like terms: -1.157703666 + -0.08333333335 = -1.24103699935 x = -1.24103699935 Simplifying x = -1.24103699935

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.07437033265, -1.24103699935}

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