2x^2-45x+4=0

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Solution for 2x^2-45x+4=0 equation:


Simplifying
2x2 + -45x + 4 = 0

Reorder the terms:
4 + -45x + 2x2 = 0

Solving
4 + -45x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
2 + -22.5x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -22.5x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -22.5x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -22.5x + x2 = 0 + -2
-22.5x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-22.5x + x2 = -2

The x term is -22.5x.  Take half its coefficient (-11.25).
Square it (126.5625) and add it to both sides.

Add '126.5625' to each side of the equation.
-22.5x + 126.5625 + x2 = -2 + 126.5625

Reorder the terms:
126.5625 + -22.5x + x2 = -2 + 126.5625

Combine like terms: -2 + 126.5625 = 124.5625
126.5625 + -22.5x + x2 = 124.5625

Factor a perfect square on the left side:
(x + -11.25)(x + -11.25) = 124.5625

Calculate the square root of the right side: 11.160757143

Break this problem into two subproblems by setting 
(x + -11.25) equal to 11.160757143 and -11.160757143.

Subproblem 1

x + -11.25 = 11.160757143 Simplifying x + -11.25 = 11.160757143 Reorder the terms: -11.25 + x = 11.160757143 Solving -11.25 + x = 11.160757143 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.25' to each side of the equation. -11.25 + 11.25 + x = 11.160757143 + 11.25 Combine like terms: -11.25 + 11.25 = 0.00 0.00 + x = 11.160757143 + 11.25 x = 11.160757143 + 11.25 Combine like terms: 11.160757143 + 11.25 = 22.410757143 x = 22.410757143 Simplifying x = 22.410757143

Subproblem 2

x + -11.25 = -11.160757143 Simplifying x + -11.25 = -11.160757143 Reorder the terms: -11.25 + x = -11.160757143 Solving -11.25 + x = -11.160757143 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.25' to each side of the equation. -11.25 + 11.25 + x = -11.160757143 + 11.25 Combine like terms: -11.25 + 11.25 = 0.00 0.00 + x = -11.160757143 + 11.25 x = -11.160757143 + 11.25 Combine like terms: -11.160757143 + 11.25 = 0.089242857 x = 0.089242857 Simplifying x = 0.089242857

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.410757143, 0.089242857}

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