60=0.1x^2+0.6x+10

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Solution for 60=0.1x^2+0.6x+10 equation:


Simplifying
60 = 0.1x2 + 0.6x + 10

Reorder the terms:
60 = 10 + 0.6x + 0.1x2

Solving
60 = 10 + 0.6x + 0.1x2

Solving for variable 'x'.

Combine like terms: 60 + -10 = 50
50 + -0.6x + -0.1x2 = 10 + 0.6x + 0.1x2 + -10 + -0.6x + -0.1x2

Reorder the terms:
50 + -0.6x + -0.1x2 = 10 + -10 + 0.6x + -0.6x + 0.1x2 + -0.1x2

Combine like terms: 10 + -10 = 0
50 + -0.6x + -0.1x2 = 0 + 0.6x + -0.6x + 0.1x2 + -0.1x2
50 + -0.6x + -0.1x2 = 0.6x + -0.6x + 0.1x2 + -0.1x2

Combine like terms: 0.6x + -0.6x = 0.0
50 + -0.6x + -0.1x2 = 0.0 + 0.1x2 + -0.1x2
50 + -0.6x + -0.1x2 = 0.1x2 + -0.1x2

Combine like terms: 0.1x2 + -0.1x2 = 0.0
50 + -0.6x + -0.1x2 = 0.0

Begin completing the square.  Divide all terms by
-0.1 the coefficient of the squared term: 

Divide each side by '-0.1'.
-500 + 6x + x2 = 0

Move the constant term to the right:

Add '500' to each side of the equation.
-500 + 6x + 500 + x2 = 0 + 500

Reorder the terms:
-500 + 500 + 6x + x2 = 0 + 500

Combine like terms: -500 + 500 = 0
0 + 6x + x2 = 0 + 500
6x + x2 = 0 + 500

Combine like terms: 0 + 500 = 500
6x + x2 = 500

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 500 + 9

Reorder the terms:
9 + 6x + x2 = 500 + 9

Combine like terms: 500 + 9 = 509
9 + 6x + x2 = 509

Factor a perfect square on the left side:
(x + 3)(x + 3) = 509

Calculate the square root of the right side: 22.561028345

Break this problem into two subproblems by setting 
(x + 3) equal to 22.561028345 and -22.561028345.

Subproblem 1

x + 3 = 22.561028345 Simplifying x + 3 = 22.561028345 Reorder the terms: 3 + x = 22.561028345 Solving 3 + x = 22.561028345 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 22.561028345 + -3 Combine like terms: 3 + -3 = 0 0 + x = 22.561028345 + -3 x = 22.561028345 + -3 Combine like terms: 22.561028345 + -3 = 19.561028345 x = 19.561028345 Simplifying x = 19.561028345

Subproblem 2

x + 3 = -22.561028345 Simplifying x + 3 = -22.561028345 Reorder the terms: 3 + x = -22.561028345 Solving 3 + x = -22.561028345 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -22.561028345 + -3 Combine like terms: 3 + -3 = 0 0 + x = -22.561028345 + -3 x = -22.561028345 + -3 Combine like terms: -22.561028345 + -3 = -25.561028345 x = -25.561028345 Simplifying x = -25.561028345

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.561028345, -25.561028345}

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