19x+2x^2=1000

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Solution for 19x+2x^2=1000 equation:


Simplifying
19x + 2x2 = 1000

Solving
19x + 2x2 = 1000

Solving for variable 'x'.

Reorder the terms:
-1000 + 19x + 2x2 = 1000 + -1000

Combine like terms: 1000 + -1000 = 0
-1000 + 19x + 2x2 = 0

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

Divide each side by '2'.
-500 + 9.5x + x2 = 0

Move the constant term to the right:

Add '500' to each side of the equation.
-500 + 9.5x + 500 + x2 = 0 + 500

Reorder the terms:
-500 + 500 + 9.5x + x2 = 0 + 500

Combine like terms: -500 + 500 = 0
0 + 9.5x + x2 = 0 + 500
9.5x + x2 = 0 + 500

Combine like terms: 0 + 500 = 500
9.5x + x2 = 500

The x term is 9.5x.  Take half its coefficient (4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
9.5x + 22.5625 + x2 = 500 + 22.5625

Reorder the terms:
22.5625 + 9.5x + x2 = 500 + 22.5625

Combine like terms: 500 + 22.5625 = 522.5625
22.5625 + 9.5x + x2 = 522.5625

Factor a perfect square on the left side:
(x + 4.75)(x + 4.75) = 522.5625

Calculate the square root of the right side: 22.859625981

Break this problem into two subproblems by setting 
(x + 4.75) equal to 22.859625981 and -22.859625981.

Subproblem 1

x + 4.75 = 22.859625981 Simplifying x + 4.75 = 22.859625981 Reorder the terms: 4.75 + x = 22.859625981 Solving 4.75 + x = 22.859625981 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = 22.859625981 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 22.859625981 + -4.75 x = 22.859625981 + -4.75 Combine like terms: 22.859625981 + -4.75 = 18.109625981 x = 18.109625981 Simplifying x = 18.109625981

Subproblem 2

x + 4.75 = -22.859625981 Simplifying x + 4.75 = -22.859625981 Reorder the terms: 4.75 + x = -22.859625981 Solving 4.75 + x = -22.859625981 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = -22.859625981 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -22.859625981 + -4.75 x = -22.859625981 + -4.75 Combine like terms: -22.859625981 + -4.75 = -27.609625981 x = -27.609625981 Simplifying x = -27.609625981

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.109625981, -27.609625981}

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