6x^2=-10x+9

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Solution for 6x^2=-10x+9 equation:


Simplifying
6x2 = -10x + 9

Reorder the terms:
6x2 = 9 + -10x

Solving
6x2 = 9 + -10x

Solving for variable 'x'.

Reorder the terms:
-9 + 10x + 6x2 = 9 + -10x + -9 + 10x

Reorder the terms:
-9 + 10x + 6x2 = 9 + -9 + -10x + 10x

Combine like terms: 9 + -9 = 0
-9 + 10x + 6x2 = 0 + -10x + 10x
-9 + 10x + 6x2 = -10x + 10x

Combine like terms: -10x + 10x = 0
-9 + 10x + 6x2 = 0

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

Divide each side by '6'.
-1.5 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 1.666666667x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 1.666666667x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 1.666666667x + x2 = 0 + 1.5
1.666666667x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
1.666666667x + x2 = 1.5

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 1.5 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 1.5 + 0.6944444447

Combine like terms: 1.5 + 0.6944444447 = 2.1944444447
0.6944444447 + 1.666666667x + x2 = 2.1944444447

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 2.1944444447

Calculate the square root of the right side: 1.481365736

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 1.481365736 and -1.481365736.

Subproblem 1

x + 0.8333333335 = 1.481365736 Simplifying x + 0.8333333335 = 1.481365736 Reorder the terms: 0.8333333335 + x = 1.481365736 Solving 0.8333333335 + x = 1.481365736 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 1.481365736 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 1.481365736 + -0.8333333335 x = 1.481365736 + -0.8333333335 Combine like terms: 1.481365736 + -0.8333333335 = 0.6480324025 x = 0.6480324025 Simplifying x = 0.6480324025

Subproblem 2

x + 0.8333333335 = -1.481365736 Simplifying x + 0.8333333335 = -1.481365736 Reorder the terms: 0.8333333335 + x = -1.481365736 Solving 0.8333333335 + x = -1.481365736 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -1.481365736 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -1.481365736 + -0.8333333335 x = -1.481365736 + -0.8333333335 Combine like terms: -1.481365736 + -0.8333333335 = -2.3146990695 x = -2.3146990695 Simplifying x = -2.3146990695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6480324025, -2.3146990695}

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