1x(5x)=6+3-3x

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Solution for 1x(5x)=6+3-3x equation:


Simplifying
1x(5x) = 6 + 3 + -3x

Remove parenthesis around (5x)
1x * 5x = 6 + 3 + -3x

Reorder the terms for easier multiplication:
1 * 5x * x = 6 + 3 + -3x

Multiply 1 * 5
5x * x = 6 + 3 + -3x

Multiply x * x
5x2 = 6 + 3 + -3x

Combine like terms: 6 + 3 = 9
5x2 = 9 + -3x

Solving
5x2 = 9 + -3x

Solving for variable 'x'.

Reorder the terms:
-9 + 3x + 5x2 = 9 + -3x + -9 + 3x

Reorder the terms:
-9 + 3x + 5x2 = 9 + -9 + -3x + 3x

Combine like terms: 9 + -9 = 0
-9 + 3x + 5x2 = 0 + -3x + 3x
-9 + 3x + 5x2 = -3x + 3x

Combine like terms: -3x + 3x = 0
-9 + 3x + 5x2 = 0

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

Divide each side by '5'.
-1.8 + 0.6x + x2 = 0

Move the constant term to the right:

Add '1.8' to each side of the equation.
-1.8 + 0.6x + 1.8 + x2 = 0 + 1.8

Reorder the terms:
-1.8 + 1.8 + 0.6x + x2 = 0 + 1.8

Combine like terms: -1.8 + 1.8 = 0.0
0.0 + 0.6x + x2 = 0 + 1.8
0.6x + x2 = 0 + 1.8

Combine like terms: 0 + 1.8 = 1.8
0.6x + x2 = 1.8

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = 1.8 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = 1.8 + 0.09

Combine like terms: 1.8 + 0.09 = 1.89
0.09 + 0.6x + x2 = 1.89

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = 1.89

Calculate the square root of the right side: 1.374772708

Break this problem into two subproblems by setting 
(x + 0.3) equal to 1.374772708 and -1.374772708.

Subproblem 1

x + 0.3 = 1.374772708 Simplifying x + 0.3 = 1.374772708 Reorder the terms: 0.3 + x = 1.374772708 Solving 0.3 + x = 1.374772708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = 1.374772708 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = 1.374772708 + -0.3 x = 1.374772708 + -0.3 Combine like terms: 1.374772708 + -0.3 = 1.074772708 x = 1.074772708 Simplifying x = 1.074772708

Subproblem 2

x + 0.3 = -1.374772708 Simplifying x + 0.3 = -1.374772708 Reorder the terms: 0.3 + x = -1.374772708 Solving 0.3 + x = -1.374772708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = -1.374772708 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = -1.374772708 + -0.3 x = -1.374772708 + -0.3 Combine like terms: -1.374772708 + -0.3 = -1.674772708 x = -1.674772708 Simplifying x = -1.674772708

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.074772708, -1.674772708}

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