9x(6x-7)=-2

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Solution for 9x(6x-7)=-2 equation:


Simplifying
9x(6x + -7) = -2

Reorder the terms:
9x(-7 + 6x) = -2
(-7 * 9x + 6x * 9x) = -2
(-63x + 54x2) = -2

Solving
-63x + 54x2 = -2

Solving for variable 'x'.

Reorder the terms:
2 + -63x + 54x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + -63x + 54x2 = 0

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

Divide each side by '54'.
0.03703703704 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '-0.03703703704' to each side of the equation.
0.03703703704 + -1.166666667x + -0.03703703704 + x2 = 0 + -0.03703703704

Reorder the terms:
0.03703703704 + -0.03703703704 + -1.166666667x + x2 = 0 + -0.03703703704

Combine like terms: 0.03703703704 + -0.03703703704 = 0.00000000000
0.00000000000 + -1.166666667x + x2 = 0 + -0.03703703704
-1.166666667x + x2 = 0 + -0.03703703704

Combine like terms: 0 + -0.03703703704 = -0.03703703704
-1.166666667x + x2 = -0.03703703704

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 = -0.03703703704 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = -0.03703703704 + 0.3402777780

Combine like terms: -0.03703703704 + 0.3402777780 = 0.30324074096
0.3402777780 + -1.166666667x + x2 = 0.30324074096

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 0.30324074096

Calculate the square root of the right side: 0.550672989

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 0.550672989 and -0.550672989.

Subproblem 1

x + -0.5833333335 = 0.550672989 Simplifying x + -0.5833333335 = 0.550672989 Reorder the terms: -0.5833333335 + x = 0.550672989 Solving -0.5833333335 + x = 0.550672989 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 = 0.550672989 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 0.550672989 + 0.5833333335 x = 0.550672989 + 0.5833333335 Combine like terms: 0.550672989 + 0.5833333335 = 1.1340063225 x = 1.1340063225 Simplifying x = 1.1340063225

Subproblem 2

x + -0.5833333335 = -0.550672989 Simplifying x + -0.5833333335 = -0.550672989 Reorder the terms: -0.5833333335 + x = -0.550672989 Solving -0.5833333335 + x = -0.550672989 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 = -0.550672989 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -0.550672989 + 0.5833333335 x = -0.550672989 + 0.5833333335 Combine like terms: -0.550672989 + 0.5833333335 = 0.0326603445 x = 0.0326603445 Simplifying x = 0.0326603445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.1340063225, 0.0326603445}

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