3x(5-2x)+24=1

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Solution for 3x(5-2x)+24=1 equation:


Simplifying
3x(5 + -2x) + 24 = 1
(5 * 3x + -2x * 3x) + 24 = 1
(15x + -6x2) + 24 = 1

Reorder the terms:
24 + 15x + -6x2 = 1

Solving
24 + 15x + -6x2 = 1

Solving for variable 'x'.

Reorder the terms:
24 + -1 + 15x + -6x2 = 1 + -1

Combine like terms: 24 + -1 = 23
23 + 15x + -6x2 = 1 + -1

Combine like terms: 1 + -1 = 0
23 + 15x + -6x2 = 0

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

Divide each side by '-6'.
-3.833333333 + -2.5x + x2 = 0

Move the constant term to the right:

Add '3.833333333' to each side of the equation.
-3.833333333 + -2.5x + 3.833333333 + x2 = 0 + 3.833333333

Reorder the terms:
-3.833333333 + 3.833333333 + -2.5x + x2 = 0 + 3.833333333

Combine like terms: -3.833333333 + 3.833333333 = 0.000000000
0.000000000 + -2.5x + x2 = 0 + 3.833333333
-2.5x + x2 = 0 + 3.833333333

Combine like terms: 0 + 3.833333333 = 3.833333333
-2.5x + x2 = 3.833333333

The x term is -2.5x.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5x + 1.5625 + x2 = 3.833333333 + 1.5625

Reorder the terms:
1.5625 + -2.5x + x2 = 3.833333333 + 1.5625

Combine like terms: 3.833333333 + 1.5625 = 5.395833333
1.5625 + -2.5x + x2 = 5.395833333

Factor a perfect square on the left side:
(x + -1.25)(x + -1.25) = 5.395833333

Calculate the square root of the right side: 2.322893311

Break this problem into two subproblems by setting 
(x + -1.25) equal to 2.322893311 and -2.322893311.

Subproblem 1

x + -1.25 = 2.322893311 Simplifying x + -1.25 = 2.322893311 Reorder the terms: -1.25 + x = 2.322893311 Solving -1.25 + x = 2.322893311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 2.322893311 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 2.322893311 + 1.25 x = 2.322893311 + 1.25 Combine like terms: 2.322893311 + 1.25 = 3.572893311 x = 3.572893311 Simplifying x = 3.572893311

Subproblem 2

x + -1.25 = -2.322893311 Simplifying x + -1.25 = -2.322893311 Reorder the terms: -1.25 + x = -2.322893311 Solving -1.25 + x = -2.322893311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -2.322893311 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -2.322893311 + 1.25 x = -2.322893311 + 1.25 Combine like terms: -2.322893311 + 1.25 = -1.072893311 x = -1.072893311 Simplifying x = -1.072893311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.572893311, -1.072893311}

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