10x^2-3x-270=0

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Solution for 10x^2-3x-270=0 equation:


Simplifying
10x2 + -3x + -270 = 0

Reorder the terms:
-270 + -3x + 10x2 = 0

Solving
-270 + -3x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
-27 + -0.3x + x2 = 0

Move the constant term to the right:

Add '27' to each side of the equation.
-27 + -0.3x + 27 + x2 = 0 + 27

Reorder the terms:
-27 + 27 + -0.3x + x2 = 0 + 27

Combine like terms: -27 + 27 = 0
0 + -0.3x + x2 = 0 + 27
-0.3x + x2 = 0 + 27

Combine like terms: 0 + 27 = 27
-0.3x + x2 = 27

The x term is -0.3x.  Take half its coefficient (-0.15).
Square it (0.0225) and add it to both sides.

Add '0.0225' to each side of the equation.
-0.3x + 0.0225 + x2 = 27 + 0.0225

Reorder the terms:
0.0225 + -0.3x + x2 = 27 + 0.0225

Combine like terms: 27 + 0.0225 = 27.0225
0.0225 + -0.3x + x2 = 27.0225

Factor a perfect square on the left side:
(x + -0.15)(x + -0.15) = 27.0225

Calculate the square root of the right side: 5.198317035

Break this problem into two subproblems by setting 
(x + -0.15) equal to 5.198317035 and -5.198317035.

Subproblem 1

x + -0.15 = 5.198317035 Simplifying x + -0.15 = 5.198317035 Reorder the terms: -0.15 + x = 5.198317035 Solving -0.15 + x = 5.198317035 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.15' to each side of the equation. -0.15 + 0.15 + x = 5.198317035 + 0.15 Combine like terms: -0.15 + 0.15 = 0.00 0.00 + x = 5.198317035 + 0.15 x = 5.198317035 + 0.15 Combine like terms: 5.198317035 + 0.15 = 5.348317035 x = 5.348317035 Simplifying x = 5.348317035

Subproblem 2

x + -0.15 = -5.198317035 Simplifying x + -0.15 = -5.198317035 Reorder the terms: -0.15 + x = -5.198317035 Solving -0.15 + x = -5.198317035 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.15' to each side of the equation. -0.15 + 0.15 + x = -5.198317035 + 0.15 Combine like terms: -0.15 + 0.15 = 0.00 0.00 + x = -5.198317035 + 0.15 x = -5.198317035 + 0.15 Combine like terms: -5.198317035 + 0.15 = -5.048317035 x = -5.048317035 Simplifying x = -5.048317035

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.348317035, -5.048317035}

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