2x^2+3x=372

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Solution for 2x^2+3x=372 equation:


Simplifying
2x2 + 3x = 372

Reorder the terms:
3x + 2x2 = 372

Solving
3x + 2x2 = 372

Solving for variable 'x'.

Reorder the terms:
-372 + 3x + 2x2 = 372 + -372

Combine like terms: 372 + -372 = 0
-372 + 3x + 2x2 = 0

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

Divide each side by '2'.
-186 + 1.5x + x2 = 0

Move the constant term to the right:

Add '186' to each side of the equation.
-186 + 1.5x + 186 + x2 = 0 + 186

Reorder the terms:
-186 + 186 + 1.5x + x2 = 0 + 186

Combine like terms: -186 + 186 = 0
0 + 1.5x + x2 = 0 + 186
1.5x + x2 = 0 + 186

Combine like terms: 0 + 186 = 186
1.5x + x2 = 186

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 186 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 186 + 0.5625

Combine like terms: 186 + 0.5625 = 186.5625
0.5625 + 1.5x + x2 = 186.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 186.5625

Calculate the square root of the right side: 13.65878838

Break this problem into two subproblems by setting 
(x + 0.75) equal to 13.65878838 and -13.65878838.

Subproblem 1

x + 0.75 = 13.65878838 Simplifying x + 0.75 = 13.65878838 Reorder the terms: 0.75 + x = 13.65878838 Solving 0.75 + x = 13.65878838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 13.65878838 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 13.65878838 + -0.75 x = 13.65878838 + -0.75 Combine like terms: 13.65878838 + -0.75 = 12.90878838 x = 12.90878838 Simplifying x = 12.90878838

Subproblem 2

x + 0.75 = -13.65878838 Simplifying x + 0.75 = -13.65878838 Reorder the terms: 0.75 + x = -13.65878838 Solving 0.75 + x = -13.65878838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -13.65878838 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -13.65878838 + -0.75 x = -13.65878838 + -0.75 Combine like terms: -13.65878838 + -0.75 = -14.40878838 x = -14.40878838 Simplifying x = -14.40878838

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.90878838, -14.40878838}

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