4x^2-31x-41=-7x+6

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Solution for 4x^2-31x-41=-7x+6 equation:


Simplifying
4x2 + -31x + -41 = -7x + 6

Reorder the terms:
-41 + -31x + 4x2 = -7x + 6

Reorder the terms:
-41 + -31x + 4x2 = 6 + -7x

Solving
-41 + -31x + 4x2 = 6 + -7x

Solving for variable 'x'.

Reorder the terms:
-41 + -6 + -31x + 7x + 4x2 = 6 + -7x + -6 + 7x

Combine like terms: -41 + -6 = -47
-47 + -31x + 7x + 4x2 = 6 + -7x + -6 + 7x

Combine like terms: -31x + 7x = -24x
-47 + -24x + 4x2 = 6 + -7x + -6 + 7x

Reorder the terms:
-47 + -24x + 4x2 = 6 + -6 + -7x + 7x

Combine like terms: 6 + -6 = 0
-47 + -24x + 4x2 = 0 + -7x + 7x
-47 + -24x + 4x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-47 + -24x + 4x2 = 0

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

Divide each side by '4'.
-11.75 + -6x + x2 = 0

Move the constant term to the right:

Add '11.75' to each side of the equation.
-11.75 + -6x + 11.75 + x2 = 0 + 11.75

Reorder the terms:
-11.75 + 11.75 + -6x + x2 = 0 + 11.75

Combine like terms: -11.75 + 11.75 = 0.00
0.00 + -6x + x2 = 0 + 11.75
-6x + x2 = 0 + 11.75

Combine like terms: 0 + 11.75 = 11.75
-6x + x2 = 11.75

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 11.75 + 9

Reorder the terms:
9 + -6x + x2 = 11.75 + 9

Combine like terms: 11.75 + 9 = 20.75
9 + -6x + x2 = 20.75

Factor a perfect square on the left side:
(x + -3)(x + -3) = 20.75

Calculate the square root of the right side: 4.55521679

Break this problem into two subproblems by setting 
(x + -3) equal to 4.55521679 and -4.55521679.

Subproblem 1

x + -3 = 4.55521679 Simplifying x + -3 = 4.55521679 Reorder the terms: -3 + x = 4.55521679 Solving -3 + x = 4.55521679 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 4.55521679 + 3 Combine like terms: -3 + 3 = 0 0 + x = 4.55521679 + 3 x = 4.55521679 + 3 Combine like terms: 4.55521679 + 3 = 7.55521679 x = 7.55521679 Simplifying x = 7.55521679

Subproblem 2

x + -3 = -4.55521679 Simplifying x + -3 = -4.55521679 Reorder the terms: -3 + x = -4.55521679 Solving -3 + x = -4.55521679 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -4.55521679 + 3 Combine like terms: -3 + 3 = 0 0 + x = -4.55521679 + 3 x = -4.55521679 + 3 Combine like terms: -4.55521679 + 3 = -1.55521679 x = -1.55521679 Simplifying x = -1.55521679

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.55521679, -1.55521679}

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