14x^2-3x+7=10

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Solution for 14x^2-3x+7=10 equation:


Simplifying
14x2 + -3x + 7 = 10

Reorder the terms:
7 + -3x + 14x2 = 10

Solving
7 + -3x + 14x2 = 10

Solving for variable 'x'.

Reorder the terms:
7 + -10 + -3x + 14x2 = 10 + -10

Combine like terms: 7 + -10 = -3
-3 + -3x + 14x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-3 + -3x + 14x2 = 0

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

Divide each side by '14'.
-0.2142857143 + -0.2142857143x + x2 = 0

Move the constant term to the right:

Add '0.2142857143' to each side of the equation.
-0.2142857143 + -0.2142857143x + 0.2142857143 + x2 = 0 + 0.2142857143

Reorder the terms:
-0.2142857143 + 0.2142857143 + -0.2142857143x + x2 = 0 + 0.2142857143

Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000
0.0000000000 + -0.2142857143x + x2 = 0 + 0.2142857143
-0.2142857143x + x2 = 0 + 0.2142857143

Combine like terms: 0 + 0.2142857143 = 0.2142857143
-0.2142857143x + x2 = 0.2142857143

The x term is -0.2142857143x.  Take half its coefficient (-0.1071428572).
Square it (0.01147959185) and add it to both sides.

Add '0.01147959185' to each side of the equation.
-0.2142857143x + 0.01147959185 + x2 = 0.2142857143 + 0.01147959185

Reorder the terms:
0.01147959185 + -0.2142857143x + x2 = 0.2142857143 + 0.01147959185

Combine like terms: 0.2142857143 + 0.01147959185 = 0.22576530615
0.01147959185 + -0.2142857143x + x2 = 0.22576530615

Factor a perfect square on the left side:
(x + -0.1071428572)(x + -0.1071428572) = 0.22576530615

Calculate the square root of the right side: 0.475147668

Break this problem into two subproblems by setting 
(x + -0.1071428572) equal to 0.475147668 and -0.475147668.

Subproblem 1

x + -0.1071428572 = 0.475147668 Simplifying x + -0.1071428572 = 0.475147668 Reorder the terms: -0.1071428572 + x = 0.475147668 Solving -0.1071428572 + x = 0.475147668 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1071428572' to each side of the equation. -0.1071428572 + 0.1071428572 + x = 0.475147668 + 0.1071428572 Combine like terms: -0.1071428572 + 0.1071428572 = 0.0000000000 0.0000000000 + x = 0.475147668 + 0.1071428572 x = 0.475147668 + 0.1071428572 Combine like terms: 0.475147668 + 0.1071428572 = 0.5822905252 x = 0.5822905252 Simplifying x = 0.5822905252

Subproblem 2

x + -0.1071428572 = -0.475147668 Simplifying x + -0.1071428572 = -0.475147668 Reorder the terms: -0.1071428572 + x = -0.475147668 Solving -0.1071428572 + x = -0.475147668 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1071428572' to each side of the equation. -0.1071428572 + 0.1071428572 + x = -0.475147668 + 0.1071428572 Combine like terms: -0.1071428572 + 0.1071428572 = 0.0000000000 0.0000000000 + x = -0.475147668 + 0.1071428572 x = -0.475147668 + 0.1071428572 Combine like terms: -0.475147668 + 0.1071428572 = -0.3680048108 x = -0.3680048108 Simplifying x = -0.3680048108

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5822905252, -0.3680048108}

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