x^2+4x-175=175

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Solution for x^2+4x-175=175 equation:


Simplifying
x2 + 4x + -175 = 175

Reorder the terms:
-175 + 4x + x2 = 175

Solving
-175 + 4x + x2 = 175

Solving for variable 'x'.

Reorder the terms:
-175 + -175 + 4x + x2 = 175 + -175

Combine like terms: -175 + -175 = -350
-350 + 4x + x2 = 175 + -175

Combine like terms: 175 + -175 = 0
-350 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '350' to each side of the equation.
-350 + 4x + 350 + x2 = 0 + 350

Reorder the terms:
-350 + 350 + 4x + x2 = 0 + 350

Combine like terms: -350 + 350 = 0
0 + 4x + x2 = 0 + 350
4x + x2 = 0 + 350

Combine like terms: 0 + 350 = 350
4x + x2 = 350

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 350 + 4

Reorder the terms:
4 + 4x + x2 = 350 + 4

Combine like terms: 350 + 4 = 354
4 + 4x + x2 = 354

Factor a perfect square on the left side:
(x + 2)(x + 2) = 354

Calculate the square root of the right side: 18.814887722

Break this problem into two subproblems by setting 
(x + 2) equal to 18.814887722 and -18.814887722.

Subproblem 1

x + 2 = 18.814887722 Simplifying x + 2 = 18.814887722 Reorder the terms: 2 + x = 18.814887722 Solving 2 + x = 18.814887722 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 18.814887722 + -2 Combine like terms: 2 + -2 = 0 0 + x = 18.814887722 + -2 x = 18.814887722 + -2 Combine like terms: 18.814887722 + -2 = 16.814887722 x = 16.814887722 Simplifying x = 16.814887722

Subproblem 2

x + 2 = -18.814887722 Simplifying x + 2 = -18.814887722 Reorder the terms: 2 + x = -18.814887722 Solving 2 + x = -18.814887722 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -18.814887722 + -2 Combine like terms: 2 + -2 = 0 0 + x = -18.814887722 + -2 x = -18.814887722 + -2 Combine like terms: -18.814887722 + -2 = -20.814887722 x = -20.814887722 Simplifying x = -20.814887722

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.814887722, -20.814887722}

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