x^2+175x=1600*7

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Solution for x^2+175x=1600*7 equation:


Simplifying
x2 + 175x = 1600 * 7

Reorder the terms:
175x + x2 = 1600 * 7

Multiply 1600 * 7
175x + x2 = 11200

Solving
175x + x2 = 11200

Solving for variable 'x'.

Reorder the terms:
-11200 + 175x + x2 = 11200 + -11200

Combine like terms: 11200 + -11200 = 0
-11200 + 175x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11200' to each side of the equation.
-11200 + 175x + 11200 + x2 = 0 + 11200

Reorder the terms:
-11200 + 11200 + 175x + x2 = 0 + 11200

Combine like terms: -11200 + 11200 = 0
0 + 175x + x2 = 0 + 11200
175x + x2 = 0 + 11200

Combine like terms: 0 + 11200 = 11200
175x + x2 = 11200

The x term is 175x.  Take half its coefficient (87.5).
Square it (7656.25) and add it to both sides.

Add '7656.25' to each side of the equation.
175x + 7656.25 + x2 = 11200 + 7656.25

Reorder the terms:
7656.25 + 175x + x2 = 11200 + 7656.25

Combine like terms: 11200 + 7656.25 = 18856.25
7656.25 + 175x + x2 = 18856.25

Factor a perfect square on the left side:
(x + 87.5)(x + 87.5) = 18856.25

Calculate the square root of the right side: 137.318061449

Break this problem into two subproblems by setting 
(x + 87.5) equal to 137.318061449 and -137.318061449.

Subproblem 1

x + 87.5 = 137.318061449 Simplifying x + 87.5 = 137.318061449 Reorder the terms: 87.5 + x = 137.318061449 Solving 87.5 + x = 137.318061449 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-87.5' to each side of the equation. 87.5 + -87.5 + x = 137.318061449 + -87.5 Combine like terms: 87.5 + -87.5 = 0.0 0.0 + x = 137.318061449 + -87.5 x = 137.318061449 + -87.5 Combine like terms: 137.318061449 + -87.5 = 49.818061449 x = 49.818061449 Simplifying x = 49.818061449

Subproblem 2

x + 87.5 = -137.318061449 Simplifying x + 87.5 = -137.318061449 Reorder the terms: 87.5 + x = -137.318061449 Solving 87.5 + x = -137.318061449 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-87.5' to each side of the equation. 87.5 + -87.5 + x = -137.318061449 + -87.5 Combine like terms: 87.5 + -87.5 = 0.0 0.0 + x = -137.318061449 + -87.5 x = -137.318061449 + -87.5 Combine like terms: -137.318061449 + -87.5 = -224.818061449 x = -224.818061449 Simplifying x = -224.818061449

Solution

The solution to the problem is based on the solutions from the subproblems. x = {49.818061449, -224.818061449}

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