5x+25-50x=-4x^2-20

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Solution for 5x+25-50x=-4x^2-20 equation:


Simplifying
5x + 25 + -50x = -4x2 + -20

Reorder the terms:
25 + 5x + -50x = -4x2 + -20

Combine like terms: 5x + -50x = -45x
25 + -45x = -4x2 + -20

Reorder the terms:
25 + -45x = -20 + -4x2

Solving
25 + -45x = -20 + -4x2

Solving for variable 'x'.

Reorder the terms:
25 + 20 + -45x + 4x2 = -20 + -4x2 + 20 + 4x2

Combine like terms: 25 + 20 = 45
45 + -45x + 4x2 = -20 + -4x2 + 20 + 4x2

Reorder the terms:
45 + -45x + 4x2 = -20 + 20 + -4x2 + 4x2

Combine like terms: -20 + 20 = 0
45 + -45x + 4x2 = 0 + -4x2 + 4x2
45 + -45x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
45 + -45x + 4x2 = 0

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

Divide each side by '4'.
11.25 + -11.25x + x2 = 0

Move the constant term to the right:

Add '-11.25' to each side of the equation.
11.25 + -11.25x + -11.25 + x2 = 0 + -11.25

Reorder the terms:
11.25 + -11.25 + -11.25x + x2 = 0 + -11.25

Combine like terms: 11.25 + -11.25 = 0.00
0.00 + -11.25x + x2 = 0 + -11.25
-11.25x + x2 = 0 + -11.25

Combine like terms: 0 + -11.25 = -11.25
-11.25x + x2 = -11.25

The x term is -11.25x.  Take half its coefficient (-5.625).
Square it (31.640625) and add it to both sides.

Add '31.640625' to each side of the equation.
-11.25x + 31.640625 + x2 = -11.25 + 31.640625

Reorder the terms:
31.640625 + -11.25x + x2 = -11.25 + 31.640625

Combine like terms: -11.25 + 31.640625 = 20.390625
31.640625 + -11.25x + x2 = 20.390625

Factor a perfect square on the left side:
(x + -5.625)(x + -5.625) = 20.390625

Calculate the square root of the right side: 4.515597967

Break this problem into two subproblems by setting 
(x + -5.625) equal to 4.515597967 and -4.515597967.

Subproblem 1

x + -5.625 = 4.515597967 Simplifying x + -5.625 = 4.515597967 Reorder the terms: -5.625 + x = 4.515597967 Solving -5.625 + x = 4.515597967 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.625' to each side of the equation. -5.625 + 5.625 + x = 4.515597967 + 5.625 Combine like terms: -5.625 + 5.625 = 0.000 0.000 + x = 4.515597967 + 5.625 x = 4.515597967 + 5.625 Combine like terms: 4.515597967 + 5.625 = 10.140597967 x = 10.140597967 Simplifying x = 10.140597967

Subproblem 2

x + -5.625 = -4.515597967 Simplifying x + -5.625 = -4.515597967 Reorder the terms: -5.625 + x = -4.515597967 Solving -5.625 + x = -4.515597967 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.625' to each side of the equation. -5.625 + 5.625 + x = -4.515597967 + 5.625 Combine like terms: -5.625 + 5.625 = 0.000 0.000 + x = -4.515597967 + 5.625 x = -4.515597967 + 5.625 Combine like terms: -4.515597967 + 5.625 = 1.109402033 x = 1.109402033 Simplifying x = 1.109402033

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.140597967, 1.109402033}

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