5x(5x)+6x+5=32

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Solution for 5x(5x)+6x+5=32 equation:


Simplifying
5x(5x) + 6x + 5 = 32

Remove parenthesis around (5x)
5x * 5x + 6x + 5 = 32

Reorder the terms for easier multiplication:
5 * 5x * x + 6x + 5 = 32

Multiply 5 * 5
25x * x + 6x + 5 = 32

Multiply x * x
25x2 + 6x + 5 = 32

Reorder the terms:
5 + 6x + 25x2 = 32

Solving
5 + 6x + 25x2 = 32

Solving for variable 'x'.

Reorder the terms:
5 + -32 + 6x + 25x2 = 32 + -32

Combine like terms: 5 + -32 = -27
-27 + 6x + 25x2 = 32 + -32

Combine like terms: 32 + -32 = 0
-27 + 6x + 25x2 = 0

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

Divide each side by '25'.
-1.08 + 0.24x + x2 = 0

Move the constant term to the right:

Add '1.08' to each side of the equation.
-1.08 + 0.24x + 1.08 + x2 = 0 + 1.08

Reorder the terms:
-1.08 + 1.08 + 0.24x + x2 = 0 + 1.08

Combine like terms: -1.08 + 1.08 = 0.00
0.00 + 0.24x + x2 = 0 + 1.08
0.24x + x2 = 0 + 1.08

Combine like terms: 0 + 1.08 = 1.08
0.24x + x2 = 1.08

The x term is 0.24x.  Take half its coefficient (0.12).
Square it (0.0144) and add it to both sides.

Add '0.0144' to each side of the equation.
0.24x + 0.0144 + x2 = 1.08 + 0.0144

Reorder the terms:
0.0144 + 0.24x + x2 = 1.08 + 0.0144

Combine like terms: 1.08 + 0.0144 = 1.0944
0.0144 + 0.24x + x2 = 1.0944

Factor a perfect square on the left side:
(x + 0.12)(x + 0.12) = 1.0944

Calculate the square root of the right side: 1.046135746

Break this problem into two subproblems by setting 
(x + 0.12) equal to 1.046135746 and -1.046135746.

Subproblem 1

x + 0.12 = 1.046135746 Simplifying x + 0.12 = 1.046135746 Reorder the terms: 0.12 + x = 1.046135746 Solving 0.12 + x = 1.046135746 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.12' to each side of the equation. 0.12 + -0.12 + x = 1.046135746 + -0.12 Combine like terms: 0.12 + -0.12 = 0.00 0.00 + x = 1.046135746 + -0.12 x = 1.046135746 + -0.12 Combine like terms: 1.046135746 + -0.12 = 0.926135746 x = 0.926135746 Simplifying x = 0.926135746

Subproblem 2

x + 0.12 = -1.046135746 Simplifying x + 0.12 = -1.046135746 Reorder the terms: 0.12 + x = -1.046135746 Solving 0.12 + x = -1.046135746 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.12' to each side of the equation. 0.12 + -0.12 + x = -1.046135746 + -0.12 Combine like terms: 0.12 + -0.12 = 0.00 0.00 + x = -1.046135746 + -0.12 x = -1.046135746 + -0.12 Combine like terms: -1.046135746 + -0.12 = -1.166135746 x = -1.166135746 Simplifying x = -1.166135746

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.926135746, -1.166135746}

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