2x^2-14x=6

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Solution for 2x^2-14x=6 equation:


Simplifying
2x2 + -14x = 6

Reorder the terms:
-14x + 2x2 = 6

Solving
-14x + 2x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -14x + 2x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -14x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-3 + -7x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -7x + x2)' equal to zero and attempt to solve: Simplifying -3 + -7x + x2 = 0 Solving -3 + -7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + -7x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + -7x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -7x + x2 = 0 + 3 -7x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 -7x + x2 = 3 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = 3 + 12.25 Reorder the terms: 12.25 + -7x + x2 = 3 + 12.25 Combine like terms: 3 + 12.25 = 15.25 12.25 + -7x + x2 = 15.25 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = 15.25 Calculate the square root of the right side: 3.905124838 Break this problem into two subproblems by setting (x + -3.5) equal to 3.905124838 and -3.905124838.

Subproblem 1

x + -3.5 = 3.905124838 Simplifying x + -3.5 = 3.905124838 Reorder the terms: -3.5 + x = 3.905124838 Solving -3.5 + x = 3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 3.905124838 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 3.905124838 + 3.5 x = 3.905124838 + 3.5 Combine like terms: 3.905124838 + 3.5 = 7.405124838 x = 7.405124838 Simplifying x = 7.405124838

Subproblem 2

x + -3.5 = -3.905124838 Simplifying x + -3.5 = -3.905124838 Reorder the terms: -3.5 + x = -3.905124838 Solving -3.5 + x = -3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -3.905124838 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -3.905124838 + 3.5 x = -3.905124838 + 3.5 Combine like terms: -3.905124838 + 3.5 = -0.405124838 x = -0.405124838 Simplifying x = -0.405124838

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.405124838, -0.405124838}

Solution

x = {7.405124838, -0.405124838}

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