10x^2+29x-15=0

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Solution for 10x^2+29x-15=0 equation:


Simplifying
10x2 + 29x + -15 = 0

Reorder the terms:
-15 + 29x + 10x2 = 0

Solving
-15 + 29x + 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'.
-1.5 + 2.9x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 2.9x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 2.9x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 2.9x + x2 = 0 + 1.5
2.9x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
2.9x + x2 = 1.5

The x term is 2.9x.  Take half its coefficient (1.45).
Square it (2.1025) and add it to both sides.

Add '2.1025' to each side of the equation.
2.9x + 2.1025 + x2 = 1.5 + 2.1025

Reorder the terms:
2.1025 + 2.9x + x2 = 1.5 + 2.1025

Combine like terms: 1.5 + 2.1025 = 3.6025
2.1025 + 2.9x + x2 = 3.6025

Factor a perfect square on the left side:
(x + 1.45)(x + 1.45) = 3.6025

Calculate the square root of the right side: 1.89802529

Break this problem into two subproblems by setting 
(x + 1.45) equal to 1.89802529 and -1.89802529.

Subproblem 1

x + 1.45 = 1.89802529 Simplifying x + 1.45 = 1.89802529 Reorder the terms: 1.45 + x = 1.89802529 Solving 1.45 + x = 1.89802529 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + x = 1.89802529 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + x = 1.89802529 + -1.45 x = 1.89802529 + -1.45 Combine like terms: 1.89802529 + -1.45 = 0.44802529 x = 0.44802529 Simplifying x = 0.44802529

Subproblem 2

x + 1.45 = -1.89802529 Simplifying x + 1.45 = -1.89802529 Reorder the terms: 1.45 + x = -1.89802529 Solving 1.45 + x = -1.89802529 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + x = -1.89802529 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + x = -1.89802529 + -1.45 x = -1.89802529 + -1.45 Combine like terms: -1.89802529 + -1.45 = -3.34802529 x = -3.34802529 Simplifying x = -3.34802529

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.44802529, -3.34802529}

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