30x^2-10=5x-1

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Solution for 30x^2-10=5x-1 equation:


Simplifying
30x2 + -10 = 5x + -1

Reorder the terms:
-10 + 30x2 = 5x + -1

Reorder the terms:
-10 + 30x2 = -1 + 5x

Solving
-10 + 30x2 = -1 + 5x

Solving for variable 'x'.

Reorder the terms:
-10 + 1 + -5x + 30x2 = -1 + 5x + 1 + -5x

Combine like terms: -10 + 1 = -9
-9 + -5x + 30x2 = -1 + 5x + 1 + -5x

Reorder the terms:
-9 + -5x + 30x2 = -1 + 1 + 5x + -5x

Combine like terms: -1 + 1 = 0
-9 + -5x + 30x2 = 0 + 5x + -5x
-9 + -5x + 30x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-9 + -5x + 30x2 = 0

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

Divide each side by '30'.
-0.3 + -0.1666666667x + x2 = 0

Move the constant term to the right:

Add '0.3' to each side of the equation.
-0.3 + -0.1666666667x + 0.3 + x2 = 0 + 0.3

Reorder the terms:
-0.3 + 0.3 + -0.1666666667x + x2 = 0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + -0.1666666667x + x2 = 0 + 0.3
-0.1666666667x + x2 = 0 + 0.3

Combine like terms: 0 + 0.3 = 0.3
-0.1666666667x + x2 = 0.3

The x term is -0.1666666667x.  Take half its coefficient (-0.08333333335).
Square it (0.006944444447) and add it to both sides.

Add '0.006944444447' to each side of the equation.
-0.1666666667x + 0.006944444447 + x2 = 0.3 + 0.006944444447

Reorder the terms:
0.006944444447 + -0.1666666667x + x2 = 0.3 + 0.006944444447

Combine like terms: 0.3 + 0.006944444447 = 0.306944444447
0.006944444447 + -0.1666666667x + x2 = 0.306944444447

Factor a perfect square on the left side:
(x + -0.08333333335)(x + -0.08333333335) = 0.306944444447

Calculate the square root of the right side: 0.554025671

Break this problem into two subproblems by setting 
(x + -0.08333333335) equal to 0.554025671 and -0.554025671.

Subproblem 1

x + -0.08333333335 = 0.554025671 Simplifying x + -0.08333333335 = 0.554025671 Reorder the terms: -0.08333333335 + x = 0.554025671 Solving -0.08333333335 + x = 0.554025671 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = 0.554025671 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = 0.554025671 + 0.08333333335 x = 0.554025671 + 0.08333333335 Combine like terms: 0.554025671 + 0.08333333335 = 0.63735900435 x = 0.63735900435 Simplifying x = 0.63735900435

Subproblem 2

x + -0.08333333335 = -0.554025671 Simplifying x + -0.08333333335 = -0.554025671 Reorder the terms: -0.08333333335 + x = -0.554025671 Solving -0.08333333335 + x = -0.554025671 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = -0.554025671 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = -0.554025671 + 0.08333333335 x = -0.554025671 + 0.08333333335 Combine like terms: -0.554025671 + 0.08333333335 = -0.47069233765 x = -0.47069233765 Simplifying x = -0.47069233765

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.63735900435, -0.47069233765}

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