-9x+-8(5x^2+-5)+6x^2=

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Solution for -9x+-8(5x^2+-5)+6x^2= equation:


Simplifying
-9x + -8(5x2 + -5) + 6x2 = 0

Reorder the terms:
-9x + -8(-5 + 5x2) + 6x2 = 0
-9x + (-5 * -8 + 5x2 * -8) + 6x2 = 0
-9x + (40 + -40x2) + 6x2 = 0

Reorder the terms:
40 + -9x + -40x2 + 6x2 = 0

Combine like terms: -40x2 + 6x2 = -34x2
40 + -9x + -34x2 = 0

Solving
40 + -9x + -34x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-34 the coefficient of the squared term: 

Divide each side by '-34'.
-1.176470588 + 0.2647058824x + x2 = 0

Move the constant term to the right:

Add '1.176470588' to each side of the equation.
-1.176470588 + 0.2647058824x + 1.176470588 + x2 = 0 + 1.176470588

Reorder the terms:
-1.176470588 + 1.176470588 + 0.2647058824x + x2 = 0 + 1.176470588

Combine like terms: -1.176470588 + 1.176470588 = 0.000000000
0.000000000 + 0.2647058824x + x2 = 0 + 1.176470588
0.2647058824x + x2 = 0 + 1.176470588

Combine like terms: 0 + 1.176470588 = 1.176470588
0.2647058824x + x2 = 1.176470588

The x term is 0.2647058824x.  Take half its coefficient (0.1323529412).
Square it (0.01751730104) and add it to both sides.

Add '0.01751730104' to each side of the equation.
0.2647058824x + 0.01751730104 + x2 = 1.176470588 + 0.01751730104

Reorder the terms:
0.01751730104 + 0.2647058824x + x2 = 1.176470588 + 0.01751730104

Combine like terms: 1.176470588 + 0.01751730104 = 1.19398788904
0.01751730104 + 0.2647058824x + x2 = 1.19398788904

Factor a perfect square on the left side:
(x + 0.1323529412)(x + 0.1323529412) = 1.19398788904

Calculate the square root of the right side: 1.092697529

Break this problem into two subproblems by setting 
(x + 0.1323529412) equal to 1.092697529 and -1.092697529.

Subproblem 1

x + 0.1323529412 = 1.092697529 Simplifying x + 0.1323529412 = 1.092697529 Reorder the terms: 0.1323529412 + x = 1.092697529 Solving 0.1323529412 + x = 1.092697529 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1323529412' to each side of the equation. 0.1323529412 + -0.1323529412 + x = 1.092697529 + -0.1323529412 Combine like terms: 0.1323529412 + -0.1323529412 = 0.0000000000 0.0000000000 + x = 1.092697529 + -0.1323529412 x = 1.092697529 + -0.1323529412 Combine like terms: 1.092697529 + -0.1323529412 = 0.9603445878 x = 0.9603445878 Simplifying x = 0.9603445878

Subproblem 2

x + 0.1323529412 = -1.092697529 Simplifying x + 0.1323529412 = -1.092697529 Reorder the terms: 0.1323529412 + x = -1.092697529 Solving 0.1323529412 + x = -1.092697529 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1323529412' to each side of the equation. 0.1323529412 + -0.1323529412 + x = -1.092697529 + -0.1323529412 Combine like terms: 0.1323529412 + -0.1323529412 = 0.0000000000 0.0000000000 + x = -1.092697529 + -0.1323529412 x = -1.092697529 + -0.1323529412 Combine like terms: -1.092697529 + -0.1323529412 = -1.2250504702 x = -1.2250504702 Simplifying x = -1.2250504702

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9603445878, -1.2250504702}

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