4x^2-2x+1=30

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Solution for 4x^2-2x+1=30 equation:


Simplifying
4x2 + -2x + 1 = 30

Reorder the terms:
1 + -2x + 4x2 = 30

Solving
1 + -2x + 4x2 = 30

Solving for variable 'x'.

Reorder the terms:
1 + -30 + -2x + 4x2 = 30 + -30

Combine like terms: 1 + -30 = -29
-29 + -2x + 4x2 = 30 + -30

Combine like terms: 30 + -30 = 0
-29 + -2x + 4x2 = 0

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

Divide each side by '4'.
-7.25 + -0.5x + x2 = 0

Move the constant term to the right:

Add '7.25' to each side of the equation.
-7.25 + -0.5x + 7.25 + x2 = 0 + 7.25

Reorder the terms:
-7.25 + 7.25 + -0.5x + x2 = 0 + 7.25

Combine like terms: -7.25 + 7.25 = 0.00
0.00 + -0.5x + x2 = 0 + 7.25
-0.5x + x2 = 0 + 7.25

Combine like terms: 0 + 7.25 = 7.25
-0.5x + x2 = 7.25

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 7.25 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 7.25 + 0.0625

Combine like terms: 7.25 + 0.0625 = 7.3125
0.0625 + -0.5x + x2 = 7.3125

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 7.3125

Calculate the square root of the right side: 2.704163457

Break this problem into two subproblems by setting 
(x + -0.25) equal to 2.704163457 and -2.704163457.

Subproblem 1

x + -0.25 = 2.704163457 Simplifying x + -0.25 = 2.704163457 Reorder the terms: -0.25 + x = 2.704163457 Solving -0.25 + x = 2.704163457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 2.704163457 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 2.704163457 + 0.25 x = 2.704163457 + 0.25 Combine like terms: 2.704163457 + 0.25 = 2.954163457 x = 2.954163457 Simplifying x = 2.954163457

Subproblem 2

x + -0.25 = -2.704163457 Simplifying x + -0.25 = -2.704163457 Reorder the terms: -0.25 + x = -2.704163457 Solving -0.25 + x = -2.704163457 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -2.704163457 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -2.704163457 + 0.25 x = -2.704163457 + 0.25 Combine like terms: -2.704163457 + 0.25 = -2.454163457 x = -2.454163457 Simplifying x = -2.454163457

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.954163457, -2.454163457}

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