10x^2-247x+400=0

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Solution for 10x^2-247x+400=0 equation:


Simplifying
10x2 + -247x + 400 = 0

Reorder the terms:
400 + -247x + 10x2 = 0

Solving
400 + -247x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
40 + -24.7x + x2 = 0

Move the constant term to the right:

Add '-40' to each side of the equation.
40 + -24.7x + -40 + x2 = 0 + -40

Reorder the terms:
40 + -40 + -24.7x + x2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -24.7x + x2 = 0 + -40
-24.7x + x2 = 0 + -40

Combine like terms: 0 + -40 = -40
-24.7x + x2 = -40

The x term is -24.7x.  Take half its coefficient (-12.35).
Square it (152.5225) and add it to both sides.

Add '152.5225' to each side of the equation.
-24.7x + 152.5225 + x2 = -40 + 152.5225

Reorder the terms:
152.5225 + -24.7x + x2 = -40 + 152.5225

Combine like terms: -40 + 152.5225 = 112.5225
152.5225 + -24.7x + x2 = 112.5225

Factor a perfect square on the left side:
(x + -12.35)(x + -12.35) = 112.5225

Calculate the square root of the right side: 10.607662325

Break this problem into two subproblems by setting 
(x + -12.35) equal to 10.607662325 and -10.607662325.

Subproblem 1

x + -12.35 = 10.607662325 Simplifying x + -12.35 = 10.607662325 Reorder the terms: -12.35 + x = 10.607662325 Solving -12.35 + x = 10.607662325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.35' to each side of the equation. -12.35 + 12.35 + x = 10.607662325 + 12.35 Combine like terms: -12.35 + 12.35 = 0.00 0.00 + x = 10.607662325 + 12.35 x = 10.607662325 + 12.35 Combine like terms: 10.607662325 + 12.35 = 22.957662325 x = 22.957662325 Simplifying x = 22.957662325

Subproblem 2

x + -12.35 = -10.607662325 Simplifying x + -12.35 = -10.607662325 Reorder the terms: -12.35 + x = -10.607662325 Solving -12.35 + x = -10.607662325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.35' to each side of the equation. -12.35 + 12.35 + x = -10.607662325 + 12.35 Combine like terms: -12.35 + 12.35 = 0.00 0.00 + x = -10.607662325 + 12.35 x = -10.607662325 + 12.35 Combine like terms: -10.607662325 + 12.35 = 1.742337675 x = 1.742337675 Simplifying x = 1.742337675

Solution

The solution to the problem is based on the solutions from the subproblems. x = {22.957662325, 1.742337675}

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