-3x^2+60x+5=0

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Solution for -3x^2+60x+5=0 equation:


Simplifying
-3x2 + 60x + 5 = 0

Reorder the terms:
5 + 60x + -3x2 = 0

Solving
5 + 60x + -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'.
-1.666666667 + -20x + x2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + -20x + 1.666666667 + x2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + -20x + x2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + -20x + x2 = 0 + 1.666666667
-20x + x2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
-20x + x2 = 1.666666667

The x term is -20x.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20x + 100 + x2 = 1.666666667 + 100

Reorder the terms:
100 + -20x + x2 = 1.666666667 + 100

Combine like terms: 1.666666667 + 100 = 101.666666667
100 + -20x + x2 = 101.666666667

Factor a perfect square on the left side:
(x + -10)(x + -10) = 101.666666667

Calculate the square root of the right side: 10.082988975

Break this problem into two subproblems by setting 
(x + -10) equal to 10.082988975 and -10.082988975.

Subproblem 1

x + -10 = 10.082988975 Simplifying x + -10 = 10.082988975 Reorder the terms: -10 + x = 10.082988975 Solving -10 + x = 10.082988975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = 10.082988975 + 10 Combine like terms: -10 + 10 = 0 0 + x = 10.082988975 + 10 x = 10.082988975 + 10 Combine like terms: 10.082988975 + 10 = 20.082988975 x = 20.082988975 Simplifying x = 20.082988975

Subproblem 2

x + -10 = -10.082988975 Simplifying x + -10 = -10.082988975 Reorder the terms: -10 + x = -10.082988975 Solving -10 + x = -10.082988975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = -10.082988975 + 10 Combine like terms: -10 + 10 = 0 0 + x = -10.082988975 + 10 x = -10.082988975 + 10 Combine like terms: -10.082988975 + 10 = -0.082988975 x = -0.082988975 Simplifying x = -0.082988975

Solution

The solution to the problem is based on the solutions from the subproblems. x = {20.082988975, -0.082988975}

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