6x^2-7x=252

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Solution for 6x^2-7x=252 equation:


Simplifying
6x2 + -7x = 252

Reorder the terms:
-7x + 6x2 = 252

Solving
-7x + 6x2 = 252

Solving for variable 'x'.

Reorder the terms:
-252 + -7x + 6x2 = 252 + -252

Combine like terms: 252 + -252 = 0
-252 + -7x + 6x2 = 0

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

Divide each side by '6'.
-42 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '42' to each side of the equation.
-42 + -1.166666667x + 42 + x2 = 0 + 42

Reorder the terms:
-42 + 42 + -1.166666667x + x2 = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -1.166666667x + x2 = 0 + 42
-1.166666667x + x2 = 0 + 42

Combine like terms: 0 + 42 = 42
-1.166666667x + x2 = 42

The x term is -1.166666667x.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667x + 0.3402777780 + x2 = 42 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = 42 + 0.3402777780

Combine like terms: 42 + 0.3402777780 = 42.340277778
0.3402777780 + -1.166666667x + x2 = 42.340277778

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 42.340277778

Calculate the square root of the right side: 6.506940739

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 6.506940739 and -6.506940739.

Subproblem 1

x + -0.5833333335 = 6.506940739 Simplifying x + -0.5833333335 = 6.506940739 Reorder the terms: -0.5833333335 + x = 6.506940739 Solving -0.5833333335 + x = 6.506940739 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = 6.506940739 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 6.506940739 + 0.5833333335 x = 6.506940739 + 0.5833333335 Combine like terms: 6.506940739 + 0.5833333335 = 7.0902740725 x = 7.0902740725 Simplifying x = 7.0902740725

Subproblem 2

x + -0.5833333335 = -6.506940739 Simplifying x + -0.5833333335 = -6.506940739 Reorder the terms: -0.5833333335 + x = -6.506940739 Solving -0.5833333335 + x = -6.506940739 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = -6.506940739 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -6.506940739 + 0.5833333335 x = -6.506940739 + 0.5833333335 Combine like terms: -6.506940739 + 0.5833333335 = -5.9236074055 x = -5.9236074055 Simplifying x = -5.9236074055

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.0902740725, -5.9236074055}

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