-4x+5x(x-2)=-16+10

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Solution for -4x+5x(x-2)=-16+10 equation:


Simplifying
-4x + 5x(x + -2) = -16 + 10

Reorder the terms:
-4x + 5x(-2 + x) = -16 + 10
-4x + (-2 * 5x + x * 5x) = -16 + 10
-4x + (-10x + 5x2) = -16 + 10

Combine like terms: -4x + -10x = -14x
-14x + 5x2 = -16 + 10

Combine like terms: -16 + 10 = -6
-14x + 5x2 = -6

Solving
-14x + 5x2 = -6

Solving for variable 'x'.

Reorder the terms:
6 + -14x + 5x2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + -14x + 5x2 = 0

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

Divide each side by '5'.
1.2 + -2.8x + x2 = 0

Move the constant term to the right:

Add '-1.2' to each side of the equation.
1.2 + -2.8x + -1.2 + x2 = 0 + -1.2

Reorder the terms:
1.2 + -1.2 + -2.8x + x2 = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -2.8x + x2 = 0 + -1.2
-2.8x + x2 = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
-2.8x + x2 = -1.2

The x term is -2.8x.  Take half its coefficient (-1.4).
Square it (1.96) and add it to both sides.

Add '1.96' to each side of the equation.
-2.8x + 1.96 + x2 = -1.2 + 1.96

Reorder the terms:
1.96 + -2.8x + x2 = -1.2 + 1.96

Combine like terms: -1.2 + 1.96 = 0.76
1.96 + -2.8x + x2 = 0.76

Factor a perfect square on the left side:
(x + -1.4)(x + -1.4) = 0.76

Calculate the square root of the right side: 0.871779789

Break this problem into two subproblems by setting 
(x + -1.4) equal to 0.871779789 and -0.871779789.

Subproblem 1

x + -1.4 = 0.871779789 Simplifying x + -1.4 = 0.871779789 Reorder the terms: -1.4 + x = 0.871779789 Solving -1.4 + x = 0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4' to each side of the equation. -1.4 + 1.4 + x = 0.871779789 + 1.4 Combine like terms: -1.4 + 1.4 = 0.0 0.0 + x = 0.871779789 + 1.4 x = 0.871779789 + 1.4 Combine like terms: 0.871779789 + 1.4 = 2.271779789 x = 2.271779789 Simplifying x = 2.271779789

Subproblem 2

x + -1.4 = -0.871779789 Simplifying x + -1.4 = -0.871779789 Reorder the terms: -1.4 + x = -0.871779789 Solving -1.4 + x = -0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4' to each side of the equation. -1.4 + 1.4 + x = -0.871779789 + 1.4 Combine like terms: -1.4 + 1.4 = 0.0 0.0 + x = -0.871779789 + 1.4 x = -0.871779789 + 1.4 Combine like terms: -0.871779789 + 1.4 = 0.528220211 x = 0.528220211 Simplifying x = 0.528220211

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.271779789, 0.528220211}

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