1.5x^2+60x-190=0

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Solution for 1.5x^2+60x-190=0 equation:


Simplifying
1.5x2 + 60x + -190 = 0

Reorder the terms:
-190 + 60x + 1.5x2 = 0

Solving
-190 + 60x + 1.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '1.5'.
-126.6666667 + 40x + x2 = 0

Move the constant term to the right:

Add '126.6666667' to each side of the equation.
-126.6666667 + 40x + 126.6666667 + x2 = 0 + 126.6666667

Reorder the terms:
-126.6666667 + 126.6666667 + 40x + x2 = 0 + 126.6666667

Combine like terms: -126.6666667 + 126.6666667 = 0.0000000
0.0000000 + 40x + x2 = 0 + 126.6666667
40x + x2 = 0 + 126.6666667

Combine like terms: 0 + 126.6666667 = 126.6666667
40x + x2 = 126.6666667

The x term is 40x.  Take half its coefficient (20).
Square it (400) and add it to both sides.

Add '400' to each side of the equation.
40x + 400 + x2 = 126.6666667 + 400

Reorder the terms:
400 + 40x + x2 = 126.6666667 + 400

Combine like terms: 126.6666667 + 400 = 526.6666667
400 + 40x + x2 = 526.6666667

Factor a perfect square on the left side:
(x + 20)(x + 20) = 526.6666667

Calculate the square root of the right side: 22.949219305

Break this problem into two subproblems by setting 
(x + 20) equal to 22.949219305 and -22.949219305.

Subproblem 1

x + 20 = 22.949219305 Simplifying x + 20 = 22.949219305 Reorder the terms: 20 + x = 22.949219305 Solving 20 + x = 22.949219305 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = 22.949219305 + -20 Combine like terms: 20 + -20 = 0 0 + x = 22.949219305 + -20 x = 22.949219305 + -20 Combine like terms: 22.949219305 + -20 = 2.949219305 x = 2.949219305 Simplifying x = 2.949219305

Subproblem 2

x + 20 = -22.949219305 Simplifying x + 20 = -22.949219305 Reorder the terms: 20 + x = -22.949219305 Solving 20 + x = -22.949219305 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = -22.949219305 + -20 Combine like terms: 20 + -20 = 0 0 + x = -22.949219305 + -20 x = -22.949219305 + -20 Combine like terms: -22.949219305 + -20 = -42.949219305 x = -42.949219305 Simplifying x = -42.949219305

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.949219305, -42.949219305}

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