35=0.01x^2+5x

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Solution for 35=0.01x^2+5x equation:


Simplifying
35 = 0.01x2 + 5x

Reorder the terms:
35 = 5x + 0.01x2

Solving
35 = 5x + 0.01x2

Solving for variable 'x'.

Reorder the terms:
35 + -5x + -0.01x2 = 5x + -5x + 0.01x2 + -0.01x2

Combine like terms: 5x + -5x = 0
35 + -5x + -0.01x2 = 0 + 0.01x2 + -0.01x2
35 + -5x + -0.01x2 = 0.01x2 + -0.01x2

Combine like terms: 0.01x2 + -0.01x2 = 0.00
35 + -5x + -0.01x2 = 0.00

Begin completing the square.  Divide all terms by
-0.01 the coefficient of the squared term: 

Divide each side by '-0.01'.
-3500 + 500x + x2 = 0

Move the constant term to the right:

Add '3500' to each side of the equation.
-3500 + 500x + 3500 + x2 = 0 + 3500

Reorder the terms:
-3500 + 3500 + 500x + x2 = 0 + 3500

Combine like terms: -3500 + 3500 = 0
0 + 500x + x2 = 0 + 3500
500x + x2 = 0 + 3500

Combine like terms: 0 + 3500 = 3500
500x + x2 = 3500

The x term is 500x.  Take half its coefficient (250).
Square it (62500) and add it to both sides.

Add '62500' to each side of the equation.
500x + 62500 + x2 = 3500 + 62500

Reorder the terms:
62500 + 500x + x2 = 3500 + 62500

Combine like terms: 3500 + 62500 = 66000
62500 + 500x + x2 = 66000

Factor a perfect square on the left side:
(x + 250)(x + 250) = 66000

Calculate the square root of the right side: 256.904651573

Break this problem into two subproblems by setting 
(x + 250) equal to 256.904651573 and -256.904651573.

Subproblem 1

x + 250 = 256.904651573 Simplifying x + 250 = 256.904651573 Reorder the terms: 250 + x = 256.904651573 Solving 250 + x = 256.904651573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-250' to each side of the equation. 250 + -250 + x = 256.904651573 + -250 Combine like terms: 250 + -250 = 0 0 + x = 256.904651573 + -250 x = 256.904651573 + -250 Combine like terms: 256.904651573 + -250 = 6.904651573 x = 6.904651573 Simplifying x = 6.904651573

Subproblem 2

x + 250 = -256.904651573 Simplifying x + 250 = -256.904651573 Reorder the terms: 250 + x = -256.904651573 Solving 250 + x = -256.904651573 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-250' to each side of the equation. 250 + -250 + x = -256.904651573 + -250 Combine like terms: 250 + -250 = 0 0 + x = -256.904651573 + -250 x = -256.904651573 + -250 Combine like terms: -256.904651573 + -250 = -506.904651573 x = -506.904651573 Simplifying x = -506.904651573

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.904651573, -506.904651573}

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