3x^2+x+10=180

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Solution for 3x^2+x+10=180 equation:


Simplifying
3x2 + x + 10 = 180

Reorder the terms:
10 + x + 3x2 = 180

Solving
10 + x + 3x2 = 180

Solving for variable 'x'.

Reorder the terms:
10 + -180 + x + 3x2 = 180 + -180

Combine like terms: 10 + -180 = -170
-170 + x + 3x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-170 + x + 3x2 = 0

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

Divide each side by '3'.
-56.66666667 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '56.66666667' to each side of the equation.
-56.66666667 + 0.3333333333x + 56.66666667 + x2 = 0 + 56.66666667

Reorder the terms:
-56.66666667 + 56.66666667 + 0.3333333333x + x2 = 0 + 56.66666667

Combine like terms: -56.66666667 + 56.66666667 = 0.00000000
0.00000000 + 0.3333333333x + x2 = 0 + 56.66666667
0.3333333333x + x2 = 0 + 56.66666667

Combine like terms: 0 + 56.66666667 = 56.66666667
0.3333333333x + x2 = 56.66666667

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.
0.3333333333x + 0.25 + x2 = 56.66666667 + 0.25

Reorder the terms:
0.25 + 0.3333333333x + x2 = 56.66666667 + 0.25

Combine like terms: 56.66666667 + 0.25 = 56.91666667
0.25 + 0.3333333333x + x2 = 56.91666667

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 56.91666667

Calculate the square root of the right side: 7.544313532

Break this problem into two subproblems by setting 
(x + 0.5) equal to 7.544313532 and -7.544313532.

Subproblem 1

x + 0.5 = 7.544313532 Simplifying x + 0.5 = 7.544313532 Reorder the terms: 0.5 + x = 7.544313532 Solving 0.5 + x = 7.544313532 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 = 7.544313532 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 7.544313532 + -0.5 x = 7.544313532 + -0.5 Combine like terms: 7.544313532 + -0.5 = 7.044313532 x = 7.044313532 Simplifying x = 7.044313532

Subproblem 2

x + 0.5 = -7.544313532 Simplifying x + 0.5 = -7.544313532 Reorder the terms: 0.5 + x = -7.544313532 Solving 0.5 + x = -7.544313532 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 = -7.544313532 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -7.544313532 + -0.5 x = -7.544313532 + -0.5 Combine like terms: -7.544313532 + -0.5 = -8.044313532 x = -8.044313532 Simplifying x = -8.044313532

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.044313532, -8.044313532}

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