25x^2+22x-2=0

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Solution for 25x^2+22x-2=0 equation:


Simplifying
25x2 + 22x + -2 = 0

Reorder the terms:
-2 + 22x + 25x2 = 0

Solving
-2 + 22x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
-0.08 + 0.88x + x2 = 0

Move the constant term to the right:

Add '0.08' to each side of the equation.
-0.08 + 0.88x + 0.08 + x2 = 0 + 0.08

Reorder the terms:
-0.08 + 0.08 + 0.88x + x2 = 0 + 0.08

Combine like terms: -0.08 + 0.08 = 0.00
0.00 + 0.88x + x2 = 0 + 0.08
0.88x + x2 = 0 + 0.08

Combine like terms: 0 + 0.08 = 0.08
0.88x + x2 = 0.08

The x term is 0.88x.  Take half its coefficient (0.44).
Square it (0.1936) and add it to both sides.

Add '0.1936' to each side of the equation.
0.88x + 0.1936 + x2 = 0.08 + 0.1936

Reorder the terms:
0.1936 + 0.88x + x2 = 0.08 + 0.1936

Combine like terms: 0.08 + 0.1936 = 0.2736
0.1936 + 0.88x + x2 = 0.2736

Factor a perfect square on the left side:
(x + 0.44)(x + 0.44) = 0.2736

Calculate the square root of the right side: 0.523067873

Break this problem into two subproblems by setting 
(x + 0.44) equal to 0.523067873 and -0.523067873.

Subproblem 1

x + 0.44 = 0.523067873 Simplifying x + 0.44 = 0.523067873 Reorder the terms: 0.44 + x = 0.523067873 Solving 0.44 + x = 0.523067873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.44' to each side of the equation. 0.44 + -0.44 + x = 0.523067873 + -0.44 Combine like terms: 0.44 + -0.44 = 0.00 0.00 + x = 0.523067873 + -0.44 x = 0.523067873 + -0.44 Combine like terms: 0.523067873 + -0.44 = 0.083067873 x = 0.083067873 Simplifying x = 0.083067873

Subproblem 2

x + 0.44 = -0.523067873 Simplifying x + 0.44 = -0.523067873 Reorder the terms: 0.44 + x = -0.523067873 Solving 0.44 + x = -0.523067873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.44' to each side of the equation. 0.44 + -0.44 + x = -0.523067873 + -0.44 Combine like terms: 0.44 + -0.44 = 0.00 0.00 + x = -0.523067873 + -0.44 x = -0.523067873 + -0.44 Combine like terms: -0.523067873 + -0.44 = -0.963067873 x = -0.963067873 Simplifying x = -0.963067873

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.083067873, -0.963067873}

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