9x^2+4x-60=

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Solution for 9x^2+4x-60= equation:


Simplifying
9x2 + 4x + -60 = 0

Reorder the terms:
-60 + 4x + 9x2 = 0

Solving
-60 + 4x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
-6.666666667 + 0.4444444444x + x2 = 0

Move the constant term to the right:

Add '6.666666667' to each side of the equation.
-6.666666667 + 0.4444444444x + 6.666666667 + x2 = 0 + 6.666666667

Reorder the terms:
-6.666666667 + 6.666666667 + 0.4444444444x + x2 = 0 + 6.666666667

Combine like terms: -6.666666667 + 6.666666667 = 0.000000000
0.000000000 + 0.4444444444x + x2 = 0 + 6.666666667
0.4444444444x + x2 = 0 + 6.666666667

Combine like terms: 0 + 6.666666667 = 6.666666667
0.4444444444x + x2 = 6.666666667

The x term is 0.4444444444x.  Take half its coefficient (0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
0.4444444444x + 0.04938271604 + x2 = 6.666666667 + 0.04938271604

Reorder the terms:
0.04938271604 + 0.4444444444x + x2 = 6.666666667 + 0.04938271604

Combine like terms: 6.666666667 + 0.04938271604 = 6.71604938304
0.04938271604 + 0.4444444444x + x2 = 6.71604938304

Factor a perfect square on the left side:
(x + 0.2222222222)(x + 0.2222222222) = 6.71604938304

Calculate the square root of the right side: 2.591534176

Break this problem into two subproblems by setting 
(x + 0.2222222222) equal to 2.591534176 and -2.591534176.

Subproblem 1

x + 0.2222222222 = 2.591534176 Simplifying x + 0.2222222222 = 2.591534176 Reorder the terms: 0.2222222222 + x = 2.591534176 Solving 0.2222222222 + x = 2.591534176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = 2.591534176 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = 2.591534176 + -0.2222222222 x = 2.591534176 + -0.2222222222 Combine like terms: 2.591534176 + -0.2222222222 = 2.3693119538 x = 2.3693119538 Simplifying x = 2.3693119538

Subproblem 2

x + 0.2222222222 = -2.591534176 Simplifying x + 0.2222222222 = -2.591534176 Reorder the terms: 0.2222222222 + x = -2.591534176 Solving 0.2222222222 + x = -2.591534176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.2222222222 + x = -2.591534176 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + x = -2.591534176 + -0.2222222222 x = -2.591534176 + -0.2222222222 Combine like terms: -2.591534176 + -0.2222222222 = -2.8137563982 x = -2.8137563982 Simplifying x = -2.8137563982

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.3693119538, -2.8137563982}

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