x^2+43x=175

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Solution for x^2+43x=175 equation:


Simplifying
x2 + 43x = 175

Reorder the terms:
43x + x2 = 175

Solving
43x + x2 = 175

Solving for variable 'x'.

Reorder the terms:
-175 + 43x + x2 = 175 + -175

Combine like terms: 175 + -175 = 0
-175 + 43x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '175' to each side of the equation.
-175 + 43x + 175 + x2 = 0 + 175

Reorder the terms:
-175 + 175 + 43x + x2 = 0 + 175

Combine like terms: -175 + 175 = 0
0 + 43x + x2 = 0 + 175
43x + x2 = 0 + 175

Combine like terms: 0 + 175 = 175
43x + x2 = 175

The x term is 43x.  Take half its coefficient (21.5).
Square it (462.25) and add it to both sides.

Add '462.25' to each side of the equation.
43x + 462.25 + x2 = 175 + 462.25

Reorder the terms:
462.25 + 43x + x2 = 175 + 462.25

Combine like terms: 175 + 462.25 = 637.25
462.25 + 43x + x2 = 637.25

Factor a perfect square on the left side:
(x + 21.5)(x + 21.5) = 637.25

Calculate the square root of the right side: 25.243811123

Break this problem into two subproblems by setting 
(x + 21.5) equal to 25.243811123 and -25.243811123.

Subproblem 1

x + 21.5 = 25.243811123 Simplifying x + 21.5 = 25.243811123 Reorder the terms: 21.5 + x = 25.243811123 Solving 21.5 + x = 25.243811123 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21.5' to each side of the equation. 21.5 + -21.5 + x = 25.243811123 + -21.5 Combine like terms: 21.5 + -21.5 = 0.0 0.0 + x = 25.243811123 + -21.5 x = 25.243811123 + -21.5 Combine like terms: 25.243811123 + -21.5 = 3.743811123 x = 3.743811123 Simplifying x = 3.743811123

Subproblem 2

x + 21.5 = -25.243811123 Simplifying x + 21.5 = -25.243811123 Reorder the terms: 21.5 + x = -25.243811123 Solving 21.5 + x = -25.243811123 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21.5' to each side of the equation. 21.5 + -21.5 + x = -25.243811123 + -21.5 Combine like terms: 21.5 + -21.5 = 0.0 0.0 + x = -25.243811123 + -21.5 x = -25.243811123 + -21.5 Combine like terms: -25.243811123 + -21.5 = -46.743811123 x = -46.743811123 Simplifying x = -46.743811123

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.743811123, -46.743811123}

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