5x(7x-3)=2+5x

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Solution for 5x(7x-3)=2+5x equation:


Simplifying
5x(7x + -3) = 2 + 5x

Reorder the terms:
5x(-3 + 7x) = 2 + 5x
(-3 * 5x + 7x * 5x) = 2 + 5x
(-15x + 35x2) = 2 + 5x

Solving
-15x + 35x2 = 2 + 5x

Solving for variable 'x'.

Reorder the terms:
-2 + -15x + -5x + 35x2 = 2 + 5x + -2 + -5x

Combine like terms: -15x + -5x = -20x
-2 + -20x + 35x2 = 2 + 5x + -2 + -5x

Reorder the terms:
-2 + -20x + 35x2 = 2 + -2 + 5x + -5x

Combine like terms: 2 + -2 = 0
-2 + -20x + 35x2 = 0 + 5x + -5x
-2 + -20x + 35x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-2 + -20x + 35x2 = 0

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

Divide each side by '35'.
-0.05714285714 + -0.5714285714x + x2 = 0

Move the constant term to the right:

Add '0.05714285714' to each side of the equation.
-0.05714285714 + -0.5714285714x + 0.05714285714 + x2 = 0 + 0.05714285714

Reorder the terms:
-0.05714285714 + 0.05714285714 + -0.5714285714x + x2 = 0 + 0.05714285714

Combine like terms: -0.05714285714 + 0.05714285714 = 0.00000000000
0.00000000000 + -0.5714285714x + x2 = 0 + 0.05714285714
-0.5714285714x + x2 = 0 + 0.05714285714

Combine like terms: 0 + 0.05714285714 = 0.05714285714
-0.5714285714x + x2 = 0.05714285714

The x term is -0.5714285714x.  Take half its coefficient (-0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
-0.5714285714x + 0.08163265305 + x2 = 0.05714285714 + 0.08163265305

Reorder the terms:
0.08163265305 + -0.5714285714x + x2 = 0.05714285714 + 0.08163265305

Combine like terms: 0.05714285714 + 0.08163265305 = 0.13877551019
0.08163265305 + -0.5714285714x + x2 = 0.13877551019

Factor a perfect square on the left side:
(x + -0.2857142857)(x + -0.2857142857) = 0.13877551019

Calculate the square root of the right side: 0.372525852

Break this problem into two subproblems by setting 
(x + -0.2857142857) equal to 0.372525852 and -0.372525852.

Subproblem 1

x + -0.2857142857 = 0.372525852 Simplifying x + -0.2857142857 = 0.372525852 Reorder the terms: -0.2857142857 + x = 0.372525852 Solving -0.2857142857 + x = 0.372525852 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2857142857' to each side of the equation. -0.2857142857 + 0.2857142857 + x = 0.372525852 + 0.2857142857 Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000 0.0000000000 + x = 0.372525852 + 0.2857142857 x = 0.372525852 + 0.2857142857 Combine like terms: 0.372525852 + 0.2857142857 = 0.6582401377 x = 0.6582401377 Simplifying x = 0.6582401377

Subproblem 2

x + -0.2857142857 = -0.372525852 Simplifying x + -0.2857142857 = -0.372525852 Reorder the terms: -0.2857142857 + x = -0.372525852 Solving -0.2857142857 + x = -0.372525852 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2857142857' to each side of the equation. -0.2857142857 + 0.2857142857 + x = -0.372525852 + 0.2857142857 Combine like terms: -0.2857142857 + 0.2857142857 = 0.0000000000 0.0000000000 + x = -0.372525852 + 0.2857142857 x = -0.372525852 + 0.2857142857 Combine like terms: -0.372525852 + 0.2857142857 = -0.0868115663 x = -0.0868115663 Simplifying x = -0.0868115663

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6582401377, -0.0868115663}

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