(61x-84)(43x-63)=869110

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Solution for (61x-84)(43x-63)=869110 equation:


Simplifying
(61x + -84)(43x + -63) = 869110

Reorder the terms:
(-84 + 61x)(43x + -63) = 869110

Reorder the terms:
(-84 + 61x)(-63 + 43x) = 869110

Multiply (-84 + 61x) * (-63 + 43x)
(-84(-63 + 43x) + 61x * (-63 + 43x)) = 869110
((-63 * -84 + 43x * -84) + 61x * (-63 + 43x)) = 869110
((5292 + -3612x) + 61x * (-63 + 43x)) = 869110
(5292 + -3612x + (-63 * 61x + 43x * 61x)) = 869110
(5292 + -3612x + (-3843x + 2623x2)) = 869110

Combine like terms: -3612x + -3843x = -7455x
(5292 + -7455x + 2623x2) = 869110

Solving
5292 + -7455x + 2623x2 = 869110

Solving for variable 'x'.

Reorder the terms:
5292 + -869110 + -7455x + 2623x2 = 869110 + -869110

Combine like terms: 5292 + -869110 = -863818
-863818 + -7455x + 2623x2 = 869110 + -869110

Combine like terms: 869110 + -869110 = 0
-863818 + -7455x + 2623x2 = 0

Begin completing the square.  Divide all terms by
2623 the coefficient of the squared term: 

Divide each side by '2623'.
-329.3244377 + -2.842165459x + x2 = 0

Move the constant term to the right:

Add '329.3244377' to each side of the equation.
-329.3244377 + -2.842165459x + 329.3244377 + x2 = 0 + 329.3244377

Reorder the terms:
-329.3244377 + 329.3244377 + -2.842165459x + x2 = 0 + 329.3244377

Combine like terms: -329.3244377 + 329.3244377 = 0.0000000
0.0000000 + -2.842165459x + x2 = 0 + 329.3244377
-2.842165459x + x2 = 0 + 329.3244377

Combine like terms: 0 + 329.3244377 = 329.3244377
-2.842165459x + x2 = 329.3244377

The x term is -2.842165459x.  Take half its coefficient (-1.42108273).
Square it (2.019476126) and add it to both sides.

Add '2.019476126' to each side of the equation.
-2.842165459x + 2.019476126 + x2 = 329.3244377 + 2.019476126

Reorder the terms:
2.019476126 + -2.842165459x + x2 = 329.3244377 + 2.019476126

Combine like terms: 329.3244377 + 2.019476126 = 331.343913826
2.019476126 + -2.842165459x + x2 = 331.343913826

Factor a perfect square on the left side:
(x + -1.42108273)(x + -1.42108273) = 331.343913826

Calculate the square root of the right side: 18.202854552

Break this problem into two subproblems by setting 
(x + -1.42108273) equal to 18.202854552 and -18.202854552.

Subproblem 1

x + -1.42108273 = 18.202854552 Simplifying x + -1.42108273 = 18.202854552 Reorder the terms: -1.42108273 + x = 18.202854552 Solving -1.42108273 + x = 18.202854552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.42108273' to each side of the equation. -1.42108273 + 1.42108273 + x = 18.202854552 + 1.42108273 Combine like terms: -1.42108273 + 1.42108273 = 0.00000000 0.00000000 + x = 18.202854552 + 1.42108273 x = 18.202854552 + 1.42108273 Combine like terms: 18.202854552 + 1.42108273 = 19.623937282 x = 19.623937282 Simplifying x = 19.623937282

Subproblem 2

x + -1.42108273 = -18.202854552 Simplifying x + -1.42108273 = -18.202854552 Reorder the terms: -1.42108273 + x = -18.202854552 Solving -1.42108273 + x = -18.202854552 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.42108273' to each side of the equation. -1.42108273 + 1.42108273 + x = -18.202854552 + 1.42108273 Combine like terms: -1.42108273 + 1.42108273 = 0.00000000 0.00000000 + x = -18.202854552 + 1.42108273 x = -18.202854552 + 1.42108273 Combine like terms: -18.202854552 + 1.42108273 = -16.781771822 x = -16.781771822 Simplifying x = -16.781771822

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.623937282, -16.781771822}

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