5x^2-73x+30=0

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Solution for 5x^2-73x+30=0 equation:


Simplifying
5x2 + -73x + 30 = 0

Reorder the terms:
30 + -73x + 5x2 = 0

Solving
30 + -73x + 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'.
6 + -14.6x + x2 = 0

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + -14.6x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + -14.6x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -14.6x + x2 = 0 + -6
-14.6x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
-14.6x + x2 = -6

The x term is -14.6x.  Take half its coefficient (-7.3).
Square it (53.29) and add it to both sides.

Add '53.29' to each side of the equation.
-14.6x + 53.29 + x2 = -6 + 53.29

Reorder the terms:
53.29 + -14.6x + x2 = -6 + 53.29

Combine like terms: -6 + 53.29 = 47.29
53.29 + -14.6x + x2 = 47.29

Factor a perfect square on the left side:
(x + -7.3)(x + -7.3) = 47.29

Calculate the square root of the right side: 6.876772499

Break this problem into two subproblems by setting 
(x + -7.3) equal to 6.876772499 and -6.876772499.

Subproblem 1

x + -7.3 = 6.876772499 Simplifying x + -7.3 = 6.876772499 Reorder the terms: -7.3 + x = 6.876772499 Solving -7.3 + x = 6.876772499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.3' to each side of the equation. -7.3 + 7.3 + x = 6.876772499 + 7.3 Combine like terms: -7.3 + 7.3 = 0.0 0.0 + x = 6.876772499 + 7.3 x = 6.876772499 + 7.3 Combine like terms: 6.876772499 + 7.3 = 14.176772499 x = 14.176772499 Simplifying x = 14.176772499

Subproblem 2

x + -7.3 = -6.876772499 Simplifying x + -7.3 = -6.876772499 Reorder the terms: -7.3 + x = -6.876772499 Solving -7.3 + x = -6.876772499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.3' to each side of the equation. -7.3 + 7.3 + x = -6.876772499 + 7.3 Combine like terms: -7.3 + 7.3 = 0.0 0.0 + x = -6.876772499 + 7.3 x = -6.876772499 + 7.3 Combine like terms: -6.876772499 + 7.3 = 0.423227501 x = 0.423227501 Simplifying x = 0.423227501

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.176772499, 0.423227501}

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