x*x+0.175x-0.075=0

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Solution for x*x+0.175x-0.075=0 equation:


Simplifying
x * x + 0.175x + -0.075 = 0

Multiply x * x
x2 + 0.175x + -0.075 = 0

Reorder the terms:
-0.075 + 0.175x + x2 = 0

Solving
-0.075 + 0.175x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '0.075' to each side of the equation.
-0.075 + 0.175x + 0.075 + x2 = 0 + 0.075

Reorder the terms:
-0.075 + 0.075 + 0.175x + x2 = 0 + 0.075

Combine like terms: -0.075 + 0.075 = 0.000
0.000 + 0.175x + x2 = 0 + 0.075
0.175x + x2 = 0 + 0.075

Combine like terms: 0 + 0.075 = 0.075
0.175x + x2 = 0.075

The x term is 0.175x.  Take half its coefficient (0.0875).
Square it (0.00765625) and add it to both sides.

Add '0.00765625' to each side of the equation.
0.175x + 0.00765625 + x2 = 0.075 + 0.00765625

Reorder the terms:
0.00765625 + 0.175x + x2 = 0.075 + 0.00765625

Combine like terms: 0.075 + 0.00765625 = 0.08265625
0.00765625 + 0.175x + x2 = 0.08265625

Factor a perfect square on the left side:
(x + 0.0875)(x + 0.0875) = 0.08265625

Calculate the square root of the right side: 0.2875

Break this problem into two subproblems by setting 
(x + 0.0875) equal to 0.2875 and -0.2875.

Subproblem 1

x + 0.0875 = 0.2875 Simplifying x + 0.0875 = 0.2875 Reorder the terms: 0.0875 + x = 0.2875 Solving 0.0875 + x = 0.2875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0875' to each side of the equation. 0.0875 + -0.0875 + x = 0.2875 + -0.0875 Combine like terms: 0.0875 + -0.0875 = 0.0000 0.0000 + x = 0.2875 + -0.0875 x = 0.2875 + -0.0875 Combine like terms: 0.2875 + -0.0875 = 0.2 x = 0.2 Simplifying x = 0.2

Subproblem 2

x + 0.0875 = -0.2875 Simplifying x + 0.0875 = -0.2875 Reorder the terms: 0.0875 + x = -0.2875 Solving 0.0875 + x = -0.2875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0875' to each side of the equation. 0.0875 + -0.0875 + x = -0.2875 + -0.0875 Combine like terms: 0.0875 + -0.0875 = 0.0000 0.0000 + x = -0.2875 + -0.0875 x = -0.2875 + -0.0875 Combine like terms: -0.2875 + -0.0875 = -0.375 x = -0.375 Simplifying x = -0.375

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2, -0.375}

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