5x^2+16x-95=0

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Solution for 5x^2+16x-95=0 equation:


Simplifying
5x2 + 16x + -95 = 0

Reorder the terms:
-95 + 16x + 5x2 = 0

Solving
-95 + 16x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-19 + 3.2x + x2 = 0

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + 3.2x + 19 + x2 = 0 + 19

Reorder the terms:
-19 + 19 + 3.2x + x2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + 3.2x + x2 = 0 + 19
3.2x + x2 = 0 + 19

Combine like terms: 0 + 19 = 19
3.2x + x2 = 19

The x term is 3.2x.  Take half its coefficient (1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
3.2x + 2.56 + x2 = 19 + 2.56

Reorder the terms:
2.56 + 3.2x + x2 = 19 + 2.56

Combine like terms: 19 + 2.56 = 21.56
2.56 + 3.2x + x2 = 21.56

Factor a perfect square on the left side:
(x + 1.6)(x + 1.6) = 21.56

Calculate the square root of the right side: 4.643274706

Break this problem into two subproblems by setting 
(x + 1.6) equal to 4.643274706 and -4.643274706.

Subproblem 1

x + 1.6 = 4.643274706 Simplifying x + 1.6 = 4.643274706 Reorder the terms: 1.6 + x = 4.643274706 Solving 1.6 + x = 4.643274706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + x = 4.643274706 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + x = 4.643274706 + -1.6 x = 4.643274706 + -1.6 Combine like terms: 4.643274706 + -1.6 = 3.043274706 x = 3.043274706 Simplifying x = 3.043274706

Subproblem 2

x + 1.6 = -4.643274706 Simplifying x + 1.6 = -4.643274706 Reorder the terms: 1.6 + x = -4.643274706 Solving 1.6 + x = -4.643274706 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + x = -4.643274706 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + x = -4.643274706 + -1.6 x = -4.643274706 + -1.6 Combine like terms: -4.643274706 + -1.6 = -6.243274706 x = -6.243274706 Simplifying x = -6.243274706

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.043274706, -6.243274706}

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