-3x^2-24x+17=0

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Solution for -3x^2-24x+17=0 equation:


Simplifying
-3x2 + -24x + 17 = 0

Reorder the terms:
17 + -24x + -3x2 = 0

Solving
17 + -24x + -3x2 = 0

Solving for variable 'x'.

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

Divide each side by '-3'.
-5.666666667 + 8x + x2 = 0

Move the constant term to the right:

Add '5.666666667' to each side of the equation.
-5.666666667 + 8x + 5.666666667 + x2 = 0 + 5.666666667

Reorder the terms:
-5.666666667 + 5.666666667 + 8x + x2 = 0 + 5.666666667

Combine like terms: -5.666666667 + 5.666666667 = 0.000000000
0.000000000 + 8x + x2 = 0 + 5.666666667
8x + x2 = 0 + 5.666666667

Combine like terms: 0 + 5.666666667 = 5.666666667
8x + x2 = 5.666666667

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 5.666666667 + 16

Reorder the terms:
16 + 8x + x2 = 5.666666667 + 16

Combine like terms: 5.666666667 + 16 = 21.666666667
16 + 8x + x2 = 21.666666667

Factor a perfect square on the left side:
(x + 4)(x + 4) = 21.666666667

Calculate the square root of the right side: 4.654746681

Break this problem into two subproblems by setting 
(x + 4) equal to 4.654746681 and -4.654746681.

Subproblem 1

x + 4 = 4.654746681 Simplifying x + 4 = 4.654746681 Reorder the terms: 4 + x = 4.654746681 Solving 4 + x = 4.654746681 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 4.654746681 + -4 Combine like terms: 4 + -4 = 0 0 + x = 4.654746681 + -4 x = 4.654746681 + -4 Combine like terms: 4.654746681 + -4 = 0.654746681 x = 0.654746681 Simplifying x = 0.654746681

Subproblem 2

x + 4 = -4.654746681 Simplifying x + 4 = -4.654746681 Reorder the terms: 4 + x = -4.654746681 Solving 4 + x = -4.654746681 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -4.654746681 + -4 Combine like terms: 4 + -4 = 0 0 + x = -4.654746681 + -4 x = -4.654746681 + -4 Combine like terms: -4.654746681 + -4 = -8.654746681 x = -8.654746681 Simplifying x = -8.654746681

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.654746681, -8.654746681}

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