14x(-3x+5)=3

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Solution for 14x(-3x+5)=3 equation:


Simplifying
14x(-3x + 5) = 3

Reorder the terms:
14x(5 + -3x) = 3
(5 * 14x + -3x * 14x) = 3
(70x + -42x2) = 3

Solving
70x + -42x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + 70x + -42x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 70x + -42x2 = 0

Begin completing the square.  Divide all terms by
-42 the coefficient of the squared term: 

Divide each side by '-42'.
0.07142857143 + -1.666666667x + x2 = 0

Move the constant term to the right:

Add '-0.07142857143' to each side of the equation.
0.07142857143 + -1.666666667x + -0.07142857143 + x2 = 0 + -0.07142857143

Reorder the terms:
0.07142857143 + -0.07142857143 + -1.666666667x + x2 = 0 + -0.07142857143

Combine like terms: 0.07142857143 + -0.07142857143 = 0.00000000000
0.00000000000 + -1.666666667x + x2 = 0 + -0.07142857143
-1.666666667x + x2 = 0 + -0.07142857143

Combine like terms: 0 + -0.07142857143 = -0.07142857143
-1.666666667x + x2 = -0.07142857143

The x term is -1.666666667x.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667x + 0.6944444447 + x2 = -0.07142857143 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667x + x2 = -0.07142857143 + 0.6944444447

Combine like terms: -0.07142857143 + 0.6944444447 = 0.62301587327
0.6944444447 + -1.666666667x + x2 = 0.62301587327

Factor a perfect square on the left side:
(x + -0.8333333335)(x + -0.8333333335) = 0.62301587327

Calculate the square root of the right side: 0.789313546

Break this problem into two subproblems by setting 
(x + -0.8333333335) equal to 0.789313546 and -0.789313546.

Subproblem 1

x + -0.8333333335 = 0.789313546 Simplifying x + -0.8333333335 = 0.789313546 Reorder the terms: -0.8333333335 + x = 0.789313546 Solving -0.8333333335 + x = 0.789313546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + x = 0.789313546 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + x = 0.789313546 + 0.8333333335 x = 0.789313546 + 0.8333333335 Combine like terms: 0.789313546 + 0.8333333335 = 1.6226468795 x = 1.6226468795 Simplifying x = 1.6226468795

Subproblem 2

x + -0.8333333335 = -0.789313546 Simplifying x + -0.8333333335 = -0.789313546 Reorder the terms: -0.8333333335 + x = -0.789313546 Solving -0.8333333335 + x = -0.789313546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + x = -0.789313546 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + x = -0.789313546 + 0.8333333335 x = -0.789313546 + 0.8333333335 Combine like terms: -0.789313546 + 0.8333333335 = 0.0440197875 x = 0.0440197875 Simplifying x = 0.0440197875

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.6226468795, 0.0440197875}

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