3x^2+14x+14x+17=59

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Solution for 3x^2+14x+14x+17=59 equation:


Simplifying
3x2 + 14x + 14x + 17 = 59

Reorder the terms:
17 + 14x + 14x + 3x2 = 59

Combine like terms: 14x + 14x = 28x
17 + 28x + 3x2 = 59

Solving
17 + 28x + 3x2 = 59

Solving for variable 'x'.

Reorder the terms:
17 + -59 + 28x + 3x2 = 59 + -59

Combine like terms: 17 + -59 = -42
-42 + 28x + 3x2 = 59 + -59

Combine like terms: 59 + -59 = 0
-42 + 28x + 3x2 = 0

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

Divide each side by '3'.
-14 + 9.333333333x + x2 = 0

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + 9.333333333x + 14 + x2 = 0 + 14

Reorder the terms:
-14 + 14 + 9.333333333x + x2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 9.333333333x + x2 = 0 + 14
9.333333333x + x2 = 0 + 14

Combine like terms: 0 + 14 = 14
9.333333333x + x2 = 14

The x term is 9.333333333x.  Take half its coefficient (4.666666667).
Square it (21.77777778) and add it to both sides.

Add '21.77777778' to each side of the equation.
9.333333333x + 21.77777778 + x2 = 14 + 21.77777778

Reorder the terms:
21.77777778 + 9.333333333x + x2 = 14 + 21.77777778

Combine like terms: 14 + 21.77777778 = 35.77777778
21.77777778 + 9.333333333x + x2 = 35.77777778

Factor a perfect square on the left side:
(x + 4.666666667)(x + 4.666666667) = 35.77777778

Calculate the square root of the right side: 5.981452815

Break this problem into two subproblems by setting 
(x + 4.666666667) equal to 5.981452815 and -5.981452815.

Subproblem 1

x + 4.666666667 = 5.981452815 Simplifying x + 4.666666667 = 5.981452815 Reorder the terms: 4.666666667 + x = 5.981452815 Solving 4.666666667 + x = 5.981452815 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.666666667' to each side of the equation. 4.666666667 + -4.666666667 + x = 5.981452815 + -4.666666667 Combine like terms: 4.666666667 + -4.666666667 = 0.000000000 0.000000000 + x = 5.981452815 + -4.666666667 x = 5.981452815 + -4.666666667 Combine like terms: 5.981452815 + -4.666666667 = 1.314786148 x = 1.314786148 Simplifying x = 1.314786148

Subproblem 2

x + 4.666666667 = -5.981452815 Simplifying x + 4.666666667 = -5.981452815 Reorder the terms: 4.666666667 + x = -5.981452815 Solving 4.666666667 + x = -5.981452815 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.666666667' to each side of the equation. 4.666666667 + -4.666666667 + x = -5.981452815 + -4.666666667 Combine like terms: 4.666666667 + -4.666666667 = 0.000000000 0.000000000 + x = -5.981452815 + -4.666666667 x = -5.981452815 + -4.666666667 Combine like terms: -5.981452815 + -4.666666667 = -10.648119482 x = -10.648119482 Simplifying x = -10.648119482

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.314786148, -10.648119482}

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