x^2+x=4.95

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Solution for x^2+x=4.95 equation:


Simplifying
x2 + x = 4.95

Reorder the terms:
x + x2 = 4.95

Solving
x + x2 = 4.95

Solving for variable 'x'.

Reorder the terms:
-4.95 + x + x2 = 4.95 + -4.95

Combine like terms: 4.95 + -4.95 = 0.00
-4.95 + x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '4.95' to each side of the equation.
-4.95 + x + 4.95 + x2 = 0.00 + 4.95

Reorder the terms:
-4.95 + 4.95 + x + x2 = 0.00 + 4.95

Combine like terms: -4.95 + 4.95 = 0.00
0.00 + x + x2 = 0.00 + 4.95
x + x2 = 0.00 + 4.95

Combine like terms: 0.00 + 4.95 = 4.95
x + x2 = 4.95

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = 4.95 + 0.25

Reorder the terms:
0.25 + x + x2 = 4.95 + 0.25

Combine like terms: 4.95 + 0.25 = 5.2
0.25 + x + x2 = 5.2

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 5.2

Calculate the square root of the right side: 2.28035085

Break this problem into two subproblems by setting 
(x + 0.5) equal to 2.28035085 and -2.28035085.

Subproblem 1

x + 0.5 = 2.28035085 Simplifying x + 0.5 = 2.28035085 Reorder the terms: 0.5 + x = 2.28035085 Solving 0.5 + x = 2.28035085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.28035085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.28035085 + -0.5 x = 2.28035085 + -0.5 Combine like terms: 2.28035085 + -0.5 = 1.78035085 x = 1.78035085 Simplifying x = 1.78035085

Subproblem 2

x + 0.5 = -2.28035085 Simplifying x + 0.5 = -2.28035085 Reorder the terms: 0.5 + x = -2.28035085 Solving 0.5 + x = -2.28035085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.28035085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.28035085 + -0.5 x = -2.28035085 + -0.5 Combine like terms: -2.28035085 + -0.5 = -2.78035085 x = -2.78035085 Simplifying x = -2.78035085

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.78035085, -2.78035085}

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