4x(6x-5)-5(3-5x)=

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Solution for 4x(6x-5)-5(3-5x)= equation:


Simplifying
4x(6x + -5) + -5(3 + -5x) = 0

Reorder the terms:
4x(-5 + 6x) + -5(3 + -5x) = 0
(-5 * 4x + 6x * 4x) + -5(3 + -5x) = 0
(-20x + 24x2) + -5(3 + -5x) = 0
-20x + 24x2 + (3 * -5 + -5x * -5) = 0
-20x + 24x2 + (-15 + 25x) = 0

Reorder the terms:
-15 + -20x + 25x + 24x2 = 0

Combine like terms: -20x + 25x = 5x
-15 + 5x + 24x2 = 0

Solving
-15 + 5x + 24x2 = 0

Solving for variable 'x'.

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

Divide each side by '24'.
-0.625 + 0.2083333333x + x2 = 0

Move the constant term to the right:

Add '0.625' to each side of the equation.
-0.625 + 0.2083333333x + 0.625 + x2 = 0 + 0.625

Reorder the terms:
-0.625 + 0.625 + 0.2083333333x + x2 = 0 + 0.625

Combine like terms: -0.625 + 0.625 = 0.000
0.000 + 0.2083333333x + x2 = 0 + 0.625
0.2083333333x + x2 = 0 + 0.625

Combine like terms: 0 + 0.625 = 0.625
0.2083333333x + x2 = 0.625

The x term is 0.2083333333x.  Take half its coefficient (0.1041666667).
Square it (0.01085069445) and add it to both sides.

Add '0.01085069445' to each side of the equation.
0.2083333333x + 0.01085069445 + x2 = 0.625 + 0.01085069445

Reorder the terms:
0.01085069445 + 0.2083333333x + x2 = 0.625 + 0.01085069445

Combine like terms: 0.625 + 0.01085069445 = 0.63585069445
0.01085069445 + 0.2083333333x + x2 = 0.63585069445

Factor a perfect square on the left side:
(x + 0.1041666667)(x + 0.1041666667) = 0.63585069445

Calculate the square root of the right side: 0.797402467

Break this problem into two subproblems by setting 
(x + 0.1041666667) equal to 0.797402467 and -0.797402467.

Subproblem 1

x + 0.1041666667 = 0.797402467 Simplifying x + 0.1041666667 = 0.797402467 Reorder the terms: 0.1041666667 + x = 0.797402467 Solving 0.1041666667 + x = 0.797402467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1041666667' to each side of the equation. 0.1041666667 + -0.1041666667 + x = 0.797402467 + -0.1041666667 Combine like terms: 0.1041666667 + -0.1041666667 = 0.0000000000 0.0000000000 + x = 0.797402467 + -0.1041666667 x = 0.797402467 + -0.1041666667 Combine like terms: 0.797402467 + -0.1041666667 = 0.6932358003 x = 0.6932358003 Simplifying x = 0.6932358003

Subproblem 2

x + 0.1041666667 = -0.797402467 Simplifying x + 0.1041666667 = -0.797402467 Reorder the terms: 0.1041666667 + x = -0.797402467 Solving 0.1041666667 + x = -0.797402467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1041666667' to each side of the equation. 0.1041666667 + -0.1041666667 + x = -0.797402467 + -0.1041666667 Combine like terms: 0.1041666667 + -0.1041666667 = 0.0000000000 0.0000000000 + x = -0.797402467 + -0.1041666667 x = -0.797402467 + -0.1041666667 Combine like terms: -0.797402467 + -0.1041666667 = -0.9015691337 x = -0.9015691337 Simplifying x = -0.9015691337

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6932358003, -0.9015691337}

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